Top Definition
an idiotic person, someone who does silly things
don't eat at MacDonalds, you bumfart!
by Avoura December 02, 2005
When someone fart's around you and it smells like a fart that a bum would do.
Damn, my bro had a nasty ass BUMFART and I almost fainted!
by Texas Turbo May 07, 2006
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