Serbian Steampot 

The act of releasing smelly flatulence in bed and under sheets while another person is getting ready for bed, so that when the other person pulls down the covers and crawls into bed that person is struck in the face by a noxious odor.

"Hey man, what do you call that thing when you fart under the sheets while your girlfriend is brushing her teeth, then as she gets in bed and breathes it in without knowing it was coming? Is it a reverse dutch oven?
"No bro, that's a Serbian Steampot."

Serbian Steampot by LegitimizerFiber August 26, 2013