Top Definition
a hellashishly rank fart that somone has excreated, on the down low that no one knows about until it smacks you in the face, and gives you that i smell shit look.
man i was riding the elevater yesterday when i was hit with a
smackfart; no one would admit to it.
by RSD#5 February 12, 2007
5 Words related to smackfart

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