Definitions by Irradiatedpeanut

fapnight 

When you spend a night watching porn,fapping and whatching youtube videos up to 4 a.m in the morning,which happens to most teenagers.

'Hey Bill,wanna come to play Smash Bros tonight with the gang?'

'No, thanks...tonight is my fapnight'

fapnight by Irradiatedpeanut November 9, 2015