BASF stands for Bare Ass Shrapnel Fart. To do a proper BASF one must drop one's drawers and sit, bare ass, on a hardwood floor and then rip a monster fart. The vibration of the buttcheeks against the hardwood creates a natural reverb chamber/amplifier resulting in a thunderous cacophony akin to a gunning a chainsaw while firing an M-16.
Joe's BASF (Bare Ass Shrapnel Fart) blew a hole through the parquet and now the Celtics have to play home games at Sacred Heart until they fix it.
by DennisFreeman April 1, 2019

by Claaaaaaaaaaaaaaaawwwwwwwww November 13, 2016

by Lilniggafert March 28, 2020

by crazy_fagot_on_the_internet February 13, 2018

An expression of extreme frustration or anger, or also known to be used by those alied with Tourettes Syndrome
by Vengefulmonk September 30, 2005

by hamgirl5678 November 4, 2020
