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
Get the mug
Get a smackfart mug for your Facebook friend Paul.