butt willies

Physical reaction to a disturbing thought or image. The thought itself makes one physically pucker their ass muscles due to the actual thought.
When I thought I would have to hear Kenny G in concert, I immediately got the butt willies.
by JC Sears May 13, 2005
mugGet the butt williesmug.

muff butt willy

The bearer of a muff butt, which is an unsightly patch of pubic style hair growing from and above the crack of one's ass.
Holy shit! I never noticed this before, but Jason is a muff butt willy!
by Anus Beeker August 13, 2007
mugGet the muff butt willymug.

Butt Willy

The act of placing one's finger into another anus for the playful enjoyment of one or multiple individuals. The finger may be licked prior to insertion similar to the Wet Willy procedure. However, due to the decreased accessibility of the anus the wetting of the finger is not imperative.
"Hey bro! Just letting you know i got my first Butt Willy today! I feel like a new man!"
by Hooch daddy November 17, 2020
mugGet the Butt Willymug.