Well, the other day I asked someone to “toss me that Pap smear,” but that wasn’t jargon - it was exactly what it sounds like.
In physics we have:
Stimulated Emission
Excited States
and
Degenerate Perturbation Theory
Geology has a whole bunch… a few that come to mind right now include:
thrust faults (e.g. blind thrusts, overthrusts, high-angle thrusts, low-angle thrusts)
bedding
cleavage
finding the intersection of bedding and cleavage
dike or dike swarm
intrusion
plunging folds (sometimes even doubly plunging)
subduction zone
monroes (small mud volcano features that when paired look like breasts; and yes, named after Marilyn 
)
I was once on a field trip where another female student found a hand sample of calcite that showed the crystallographic planes quite nicely. “Wow, great cleavage!” said the prof, and no one batted an eye. Try saying that in any other context without getting socked by a lawsuit.
I think I’ve posted this before, but here it is again.
In my lab we sometimes will filter a chemical product from the solvent the reaction was run in. If the solvent, with some residual product remaining is to be reused in subsequent reactions, the usual term for the solvent is the “Mother Liquor.”
On its own, mother liquor is funny enough, but you can also
purify the mother liquor (who obviously needs it)
dispose of the mother liquor (good idea)
strip the mother liquor (ok that’s just wrong)
Pardon me while I go grease my stopcock. (a stopcock being a valve in a piece of laboratory glassware that requires grease to keep it from becoming stuck)
When I was in the military, we had officers who did some of our training. They only give lectures and mostly just read from a lesson plan, so we called them Direct Input Limited Duty Officers. I think that makes an interesting acronym.
I work for the Australian Post Office. We have a town in the state of Victoria called Bendigo. Mail is sent to Bendigo in trays of two types: mail for Bendigo town (labelled BEND CITY), and mail to be forwarded from Bendigo to surrounding areas, labelled:
…wait for it…
BEND FORWARD
When a piping designer wants to run a pipe through my structure, he has to submit a penetration request.
There was a script written for stitching NURBS surfaces together in a 3D package at a post production company in London. The programmer, having already used lots of other names for previous applications and scripts simply called it ‘wank’.
The program, a plug in by that time I believe, became standard fare and then a movie came along (Babe 2, perhaps. Don’t sue me).
Of course one of the newbie 3D artists had to ask while stitching: How do I wank the pig?
Much tittering ensued.
We have an application called File Retrieval and Editing Device, or FRED as most of us refer to it. As a windows application, it occasionally bogs down and comes to a halt.
It is then that I get the phone call…
“Fred is hung. Can you fix him?”
Similar to AV8R’s post, one of the common tasks for some people at my company is a process called ‘dump and load.’ At one point last year, I was sometimes doing 6 or 7 dump and loads per day.
I used to work for a publishing company that did monthly newsletters. Each had a four-letter code that, more or less, had to do with the book – USTT for Underground Storage Tanks, PLAN for 401K plans, and HAND for Section 501 (for handicapped).
One day a co-worker came to ask me to lunch, and I responded quickly “not yet, let me finish this HAND job first.”
I’m an aerospace engineer. If the rocket you want to launch on isn’t quite big enough, they can add a few smaller rockets that are strapped to the outside of the first stage. These smaller rockets are called strap-ons. I only barely manage a straight face.
I don’t know if this counts but I’m learning IT in university at the moment, and as such, “count” is a very commonly used word. But one of the tutors has a stron accent and it always comes out sounding exactly like “cunt”. Then again, I do have a dirty sense of humor…
Working with medical information, we get a lot of words that our MS Word dictionary doesn’t recognize. So people put them in their personal dictionaries.
Once I had a little free time, and figured I’d combine all these personal dictionaries (saved as custom.dic on your hard drive). Seemed like a good idea, and cheaper than investing in a medical dictionary that we would have to license for each of us.
We had a fun time that afternoon comparing the size of everyone’s dic. A few guys were proud that their dic files were the biggest, way larger than others. But the bragging stopped when Beth (15 yrs there) gave us her dic file, which was easily 3x the size of the largest one so far.
Right now I am working on the “Small Group Penetration” report for my client.
Weak, I know.