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 elevateryesterdaywhen i was hit with a
smackfart; no one would admit to it.
a person who is seen to be special and mentally retarded. they are easily idenifiable by the lack of common sense and geographical knowledge eg. the lake district is in scotland. they will also repeatidly ask you to pass them their imaginary rifle when encountered with a fox or similar creature. you are recommended not to approach one for the fact that they will cling to you like a leech until death do you part.