A fork of Rural Dictionary
Fapout is the tired feeling you get after jacking off
Bob: Hey man I just couldnt sleep night any tips? Jack: I drink a little, then I combine it with some fapout, I sleep like a baby
When you have completely rid your body of semen via masturbation. Usually leaves you with an aching dick and probably may be the single greatest moment in your life as a virgin.
Phil couldn't come to class today, he's had a fapout.