Hey Ruby, if we all fart at once will the snow go away?
“dirty bomb”
or the dreaded “upper decker” (when you take the lid off the top and poop in there as a prank)
Taking the Browns to the Super Bowl
[sup]That’s an American Football reference for all you International Dopers[/sup]
Solids:
Hatching a Texan/Okie/Republican/Aggie/insert your set of derided persons here
Extrusion/Extruding
Feed the Hopper
Feed the Troll
Vote for Bush
Gases:
Waffling
Imitating the Boss
Dealt (Who Dealt? as in “those who smelt it, dealt it”)
Stepping on a frog
Complimenting the Chef
My British husband taught me “reading a chapter” for solids. Ah, the British are so refined.
Jean Genet, “Our Lady of the Flowers”, on needing to take a shit:
“I have a cigar on the tip of my lip.”
And it’s from French literature,so it’s, um…classy. 
There was a thread recently where someone was in a stall and the person in the next stall stated “Who let the logs out?”.
Solids:
Birthing a politician, lawyer, used car salesman, insurance salesman
Red eye parcel delivery
Gas:
Buck snorts
Carolina car alarm (I have never quite understood this one)
I learned while dating Dread Pirate Jimbo that his family has always called diarrhea “diapoopus of the blowhole”. You bet I married him!
(We use “making a stinky” for both solids and gases, as in “The cats just made a stinky, and they didn’t bury it!”)
See also “Prarie dogging”. Think about it.
–Raising the tone of the board since sometime last week.
From a portapotty in Tremont PA:
Here I sit on the pooper
giving birth to a PA state trooper
Mouse on a Harley, was always a favorite.
For those who listen to NPR-next, we’ll hear a trouser solo work conducted by Maestro Anus Sphincto.
Short, sweet, simple 
More the act than the result…
“A long-distance call on line 2”
I seriously believe lieu is on vacation.
In your best English accent:
" I gotta go cut Brad Pitt outta me movie."
Cockney rhyming slang. gotta love it.
What about “drop some boys off at the pool” ?
The very worst of the gaseous emanations are the GDFF’s
(Girls Don’t Fart Farts)
Always unaccountable, kinda like Kissinger 
Also useful in various circumstances:
Logging Off (or On, IYP)
Downloading a .log file
Mad Ass Gassing the Turds
Winking Brown-Eye
Making Dumplings
Bio-Weapons Attack
Oh, and for the record, whomever sayeth the rhyme, be guilty of the crime!
I used to call the gaseous bastard in my cube “Butt Yodeler”.
Oh yeah, I forgot about “smelly gas bum”.
See also ‘touching cloth’
‘The tortoise is emerging’
and
‘The train is about to depart’