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the stuff you clean off your underwear after an uh-oh fart
my god he farted and got his fart paste all over his pants
by kile miner March 10, 2006
To give someone's pokemon obscene or otherwise undesirable nicknames when he or she isn't watching.
From a series of incidents in which pokemon were renamed "fartpaste"
I left my gameboy at Steve's and he fartpasted my silver version something feirce.
by Sheauwn August 20, 2007