Physical reaction to a disturbing thought or image. The thought itself makes one physically pucker their ass muscles due to the actual thought.
by JC Sears May 13, 2005
Get the butt williesmug. 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.
by Anus Beeker August 13, 2007
Get the muff butt willymug. by Captain butt Barber May 5, 2018
Get the butt plug williemug. 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.
by Hooch daddy November 17, 2020
Get the Butt Willymug.