To "Puff A Lump" means to fart and have a turd fall out.
Tom said, "There is a turd on the ground."
Tracy replied, "OH NO! I THOUGHT SOMETHING FELL OUT!"
Tom said, "So you did Puff A Lump!"
by Tom The Poop Man. March 16, 2009
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a fart that travels up the back of your pants along your booty crack
joanna had a double bubble back puff o' lump at work today and scared all the customers away.
by jlaur623 December 1, 2010
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