can

(1)(n) Bathroom
(2)(n) Jail, overnight clink or holding cell
(3)(n) Buttocks
(4)(vb) To stop doing something; to fire or get rid of someone

(1) Hold on a minute, I gotta visit the can
(2) They threw the poor homeless guy in the can for pissing in the park.
(3) Sgt: Get off your cans and start policing this area
(4) They won't can me; I'm the only one who knows what's going on in this place.

can

A competitor who is set up against a stronger opponent to make a certian competitor look better and/or gain a better record. Popular method of building fighters in boxing/kickboxing and mixed martial arts.

"That fighter isn't all that good even with a 10-0 record because he only fought cans. I'll wait and judge him when he fights a good opponent."

can

Someone's ass.

"She has a big can...Sir Mix-a-Lot would like her..."

can

(Bay Area) adj.weak, not strong, to belong in a garbage can (trash)

You heard the new whoompty whoomp? Yeah nigga, that shit is can!

can

(Australian) Breast/boob.

"Mate, fucken check out the cans on that chick over there!"

"OMFG, she is a very talented girl."

can

australian, n, gaol,
also beer

he's in the can cuz he was on the can

can

1. the head

2. a toilet

3. jail

4. to dismiss somone from employment

If I end up being late to work again, I will get canned for sure.