# What's This Vapor Coming Out Of My Anus? **URL:** \ **Category:** Factual Questions\ **Created:** [January 20, 2009, 4:06am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092 "2009-01-20T04:06:17Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Surreal](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@Surreal](https://boards.straightdope.com/u/Surreal)\ **Post date:** [January 20, 2009, 4:06am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/1 "2009-01-20T04:06:17Z")
At work we have these hardwood chairs that have a black, satin finish. The first time I sat in one, I was somewhat surprised to find a spot in the middle of the chair upon standing. I assumed I must have sat in something, but couldn’t find anything on the seat of my pants. The next time I used this chair I carefully inspected the surfaces prior to sitting down. When I got up, I noticed a similar spot. It was a golfball-sized, circular spot where the chair had fogged up (I have to sit still for a few minutes in order for the spot to form). It seems to form directly beneath the region in between my testes and my anus (aka the “choad”). The fog disappears after a few minutes and leaves no residue, so it appears to be some sort of water vapor. Furthermore, this fogging occurs regardless of whether or not I fart. What’s causing these spots to form? Thanks. ---
**Author:** ![Lamar\_Mundane](https://avatars.discourse-cdn.com/v4/letter/l/85f322/32.png) [@Lamar\_Mundane](https://boards.straightdope.com/u/Lamar_Mundane)\ **Post date:** [January 20, 2009, 4:11am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/2 "2009-01-20T04:11:47Z")
I think you should send a sealed ziplocked bag to Cecil Adams, c/o The Chicago Reader, with the enclosed evidence. Fighting ignorance, and all that. ---
**Author:** ![Joey\_P](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@Joey\_P](https://boards.straightdope.com/u/Joey_P)\ **Post date:** [January 20, 2009, 4:14am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/3 "2009-01-20T04:14:19Z")
Is the room cool? I’d suspect it’s just vapor/heat from your body condensation on the chair. Next time your in that room, I’d guess that if you place your a cupped hand on the chair for a similar length of time you’ll get the same results. ---
**Author:** ![Bootis](https://avatars.discourse-cdn.com/v4/letter/b/e8c25b/32.png) [@Bootis](https://boards.straightdope.com/u/Bootis)\ **Post date:** [January 20, 2009, 4:14am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/4 "2009-01-20T04:14:20Z")
You should have someone else sit in the chair to test if it’s just you. Maybe not tell them exactly what you’re testing. ---
**Author:** ![Joey\_P](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@Joey\_P](https://boards.straightdope.com/u/Joey_P)\ **Post date:** [January 20, 2009, 4:23am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/5 "2009-01-20T04:23:21Z")
> [@Bootis](#): > > You should have someone else sit in the chair to test if it’s just you. Maybe not tell them exactly what you’re testing. Hey Bob, my anus just left a moist spot on this chair. You try sitting here. ---
**Author:** ![FriarTed](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/friarted/32/1052_2.png) [@FriarTed](https://boards.straightdope.com/u/FriarTed)\ **Post date:** [January 20, 2009, 5:19am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/6 "2009-01-20T05:19:51Z")
I thought “choad” was another term for penis, as in “choad smoker”, not for the perineum (?), or the more dignified “taint”. And I know a whole lot of people just had Mr. Show flashbacks! I did! ---
**Author:** ![chorpler](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chorpler/32/2888_2.png) [@chorpler](https://boards.straightdope.com/u/chorpler)\ **Post date:** [January 20, 2009, 6:20am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/7 "2009-01-20T06:20:55Z")
> [@FriarTed](#): > > I thought “choad” was another term for penis, as in “choad smoker”, not for the perineum (?), or the more dignified “taint”. > > And I know a whole lot of people just had Mr. Show flashbacks! I did! Yes, I suspect the OP meant “taint” and not “choad.” ---
**Author:** ![GameHat](https://avatars.discourse-cdn.com/v4/letter/g/ed655f/32.png) [@GameHat](https://boards.straightdope.com/u/GameHat)\ **Post date:** [January 20, 2009, 6:46am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/8 "2009-01-20T06:46:26Z")
This…is the worst thread I have ever read. 😃 I dunno, try wearing thicker drawers? The “vapor” is pure, concentrated evil. ---
**Author:** ![Hazle\_Weatherfield](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hazle\_Weatherfield](https://boards.straightdope.com/u/Hazle_Weatherfield)\ **Post date:** [January 20, 2009, 6:54am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/9 "2009-01-20T06:54:10Z")
> [@GameHat](#): > > This…is the worst thread I have ever read. > > 😃 > > I dunno, try wearing thicker drawers? The “vapor” is pure, concentrated evil. If this is the worst thread you have ever read, you’re either very new here or in denial! This thread does not even come remotely close!😃 Whoops, I’m hoping that was a whoosh! ---
**Author:** ![Yorikke](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/yorikke/32/4335_2.png) [@Yorikke](https://boards.straightdope.com/u/Yorikke)\ **Post date:** [January 20, 2009, 7:31am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/10 "2009-01-20T07:31:28Z")
> [@chorpler](#): > > Yes, I suspect the OP meant “taint” and not “choad.” Jesus, I haven’t heard “choad” since I stopped visiting alt.tasteless back in the stone age of about 1993. I still laugh when I see someone with the last name “Grogan.” Joe ---
**Author:** ![maggenpye](https://avatars.discourse-cdn.com/v4/letter/m/ecc23a/32.png) [@maggenpye](https://boards.straightdope.com/u/maggenpye)\ **Post date:** [January 20, 2009, 8:02am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/11 "2009-01-20T08:02:59Z")
So, a visual reproduction of your anal regions, like a photo of your butt? It’s a … rimshot! Bum Bum, _Tush!_ ---
**Author:** ![foolsguinea](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/foolsguinea/32/14751_2.png) [@foolsguinea](https://boards.straightdope.com/u/foolsguinea)\ **Post date:** [January 20, 2009, 9:28am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/12 "2009-01-20T09:28:40Z")
I find this on plastic seats. I think it’s actually sweat, more or less. ---
**Author:** ![Carson\_O\_Genic](https://avatars.discourse-cdn.com/v4/letter/c/cdc98d/32.png) [@Carson\_O\_Genic](https://boards.straightdope.com/u/Carson_O_Genic)\ **Post date:** [January 20, 2009, 9:55am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/13 "2009-01-20T09:55:42Z")
> [@Surreal](#): > > What’s causing these spots to form? > > Thanks. I suspect it is simply that the perineal area is restricted from ventilation when sitting on a hard surface and that body temps are causing a blush in the finish. This can be seen, for example, when the forearms rest on a finished table. ---
**Author:** ![An\_Gadai](https://avatars.discourse-cdn.com/v4/letter/a/d6d6ee/32.png) [@An\_Gadai](https://boards.straightdope.com/u/An_Gadai)\ **Post date:** [January 20, 2009, 11:29am UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/14 "2009-01-20T11:29:52Z")
> [@wheresgeorge04](#): > > Jesus, I haven’t heard “choad” since I stopped visiting alt.tasteless back in the stone age of about 1993. I still laugh when I see someone with the last name “Grogan.” > > Joe [The Pub](http://www.jndstravelog.com/Europe/Dublin2006/Images/Pub_Grogan.jpg). ---
**Author:** ![Cervaise](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cervaise/32/16693_2.png) [@Cervaise](https://boards.straightdope.com/u/Cervaise)\ **Post date:** [January 20, 2009, 4:53pm UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/15 "2009-01-20T16:53:40Z")
> [@GameHat](#): > > This…is the worst thread I have ever read. [Enjoy](http://boards.straightdope.com/sdmb/showthread.php?threadid=44749). Just not at lunch. ---
**Author:** ![Mijin](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mijin/32/9369_2.png) [@Mijin](https://boards.straightdope.com/u/Mijin)\ **Post date:** [January 20, 2009, 5:40pm UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/16 "2009-01-20T17:40:39Z")
> [@Hazle\_Weatherfield](#): > > If this is the worst thread you have ever read, you’re either very new here or in denial! This thread does not even come remotely close! Helluva title to a thread though. I’d love to see a list of funny thread titles… ---
**Author:** ![SiXSwordS](https://avatars.discourse-cdn.com/v4/letter/s/49beb7/32.png) [@SiXSwordS](https://boards.straightdope.com/u/SiXSwordS)\ **Post date:** [January 20, 2009, 6:44pm UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/17 "2009-01-20T18:44:33Z")
> [@Joey\_P](#): > > Hey Bob, my anus just left a moist spot on this chair. You try sitting here. …hmm, no moist spot. Try it again, but this time fart. Or, if you farted last time, don’t. ---
**Author:** ![Mr.Slant](https://avatars.discourse-cdn.com/v4/letter/m/c57346/32.png) [@Mr.Slant](https://boards.straightdope.com/u/Mr.Slant)\ **Post date:** [January 20, 2009, 6:47pm UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/18 "2009-01-20T18:47:00Z")
> [@Mijin](#): > > Helluva title to a thread though. > > I’d love to see a list of funny thread titles… Band name! ---
**Author:** ![lieu](https://avatars.discourse-cdn.com/v4/letter/l/c2a13f/32.png) [@lieu](https://boards.straightdope.com/u/lieu)\ **Post date:** [January 20, 2009, 6:53pm UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/19 "2009-01-20T18:53:48Z")
> [@Surreal](#): > > What’s causing these spots to form? Dew dew. ---
**Author:** ![XJETGIRLX](https://avatars.discourse-cdn.com/v4/letter/x/9fc29f/32.png) [@XJETGIRLX](https://boards.straightdope.com/u/XJETGIRLX)\ **Post date:** [January 20, 2009, 6:55pm UTC](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092/20 "2009-01-20T18:55:00Z")
You don’t take [Alli](http://www.myalli.com/howdoesitwork/treatmenteffects.aspx) or eat anything with olestra, do you? [Next page](https://boards.straightdope.com/t/whats-this-vapor-coming-out-of-my-anus/482092.md?page=2)