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Internet acronym; stands for 'piss my pants funny.' Used when you find something so funny, you're likely to wet your pants. A more intense version of this is smpf.
rofl: did u hear that joke about the priest?
waffle: yeah it was pmpf!
by Tizztastic October 24, 2006

Words related to pmpf

lmfao smpf cmpf lmao lol rofl roflmfao smfpf