Definitions by kittybaby7

FUI 

fucking under the influence. having sex while also experiencing the effects of drugs, alcohol, etc. FUI is the 8th deadly sin and is punishable by a 6 month suspension of your fucking license.

Dude I don't remember her at all...I must have been FUI, I don't even remember her name.

FUI by kittybaby7 July 15, 2007