IOW, jokes that only your coworkers could possibly laugh at.
Here at the garden magazine: I was telling my sidekick something I wanted him to do about the fertilizer article, and he acknowleged it, saying “10-10-10, good buddy.”
I roared.
Back when I was a computer science undergrad my buddies and I thought the name of a record store near campus was pretty hilarious: Infinite Records and Tapes.
When people ask school bus drivers why the buses aren’t air conditioned, they say that, in fact they are. It’s a special kind of A/C called “22/50”*
*Roll down 22 windows, drive 50 mph
Complete and total hijack - Twicks, got the copies of the mag which answered my questions. Thanks very much. I enjoyed it and have taken the advice to heart; one copy goes to my gardening MIL.
10-10-10, good buddy! 
We named a computer “accolite” because it was an Oracle server.
Does that count?
We once named a plotter “conspirator”.
Did it have cabals?
One of the off-site testers at work writes the same steps to reproduce for all his bugs. It’s five steps describing how to turn on the console and load the game, with the sixth step being, “Observe the problem.”
Not really a joke, but it gave everyone in the office a good laugh when they saw it.
What is the significants of 10-10-10? I missed something.
Fertilizers come labeled with what is known as an NPK number – the amt. of nitrogen (N), phosphorous (P), and potassium (K), as percentages of weight, in the mix. A typical number (and the one usually given as an example of an NPK number) is 10-10-10.
So, instead of “10-4, good buddy” (which is the cliched CB “roger”), my sidekick said “10-10-10, good buddy” when I told him to do something with a fertilizer article.
…It looses something if you have to explain it…
He asked … shrug
He’s from another continent. Give dude a break. And the word is lose. No oo.
Only if you had chosen to spell " acolyte " properly.
Me, I woulda gone with “Delphina”
I bet twickster get’s this one too.
Go 27-3-3
Sorry – not a clue – other than 27 being 3 cubed…
Go fertilize the lawn. Oh well, too abstruse, never mind.
One year when I was in my biology post-doc I went out for halloween as a “real doctor”.
All the biology post-docs and grad students got it, no one else did. 
Yes, Spelling Master. 