A slang term for oral sex. Usually referred to as female giving to a male. But can be used to make fun of your friend.
1) Slut: I really had a good time tonight, thanks for taking me to McDonalds.
Guy: No problem, ducats?
2) Friend: Dude you are such a pussy, are you going to stop at 15 jagerbombs?
Guy: Fuck you fag, ducats?