Butt Button 

butthole, anus or brown star
antonym: belly button

You know she's a real slut when she'll let you poke her in the butt button on the first date.

Butt Button by Tiger Tail July 3, 2018

Butt on Butt 

A phrase used to describe an awkward situation

So I walked in on Bob and Kelly making out it was a major butt on butt situation

Butt on Butt by Zebben December 3, 2010

butt on (one's) shoulders 

1) the difficult and awkward bodily position wherein one's gluteus maximi are situated above one's trapezoids

2) a less vulgar and more socially acceptable synonym for "head up (one's) ass"

"I'm not inclined to continue this conversation until I hear that distinctive popping sound that will indicate to me that you've successfully removed your butt from your shoulders!"….

"Yeah, they've all got their butts on their shoulders down there at Bridgeport!"…

butt on (one's) shoulders by TIC Redux May 8, 2005

smut butt on a putt putt 

(southern U.S.A. slang, non derogatory)An african american (male) riding a motorcycle. Black motorcyclist on a budget, usually older model ragged looking cruiser with loud pipes. Don't race one, the smut butt on a putt putt will usually outrun you.

What was that blur that went by with an awful noise? It was a smut butt on a putt putt.

smut butt on a putt putt by FIrepig January 18, 2006

butt-on 

when one person pulls down thier pants and underwear and places their buttcheeks on an unsuspecting person's face.

Pierre is sleeping and abe pulls down his pants revealing his butt and puts a peanut butter jelly sandwich in his butt crack and sits on pierre's face giving him a pbj butt-on

butt-on by David P, June 18, 2006

Stupid Dumb Baby with a Butt on your Head 

1: (n) a relatively unintelligent person with unsightly facial features.

Johnny: There's no way I'm the father. You're crazy, just like your mother.

Suzie: You are such a "Stupid Dumb Baby with a Butt on your Head!"!

Stupid Dumb Baby with a Butt on your Head by Pieceofsod April 14, 2009

Butt on Moon 

This is a theoretical sex position in which one person is clenching the handle end of a wooden spoon inside their butt and lowers the bowl end of the spoon towards another persons butt (the moon) until it lands on the butt. The bowl end of the spoon is then inserted into the butthole until both of the butts touch.

This is a reference to the 1980's British Children's TV Series "Button Moon".

"Did you hear that Sapphora did Butt on Moon with Hup and the spoon broke in half?"
"I don't believe it, Butt on Moon is strictly theoretical"

Butt on Moon by goldencherry10 August 24, 2025