1 definition by cornellstudent

verb

1. to take the largest possible shit one can take (especially when drunk) and flood both the bathroom in which it was taken and the neighbour’s bathroom

2. to cause massive drunken property damage, specifically to flood someone’s bathroom
“dude I totally yammed last night”
“be careful with those burritos, you don’t want to yam up the bathroom”
by cornellstudent December 3, 2019
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