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A sexual toy that is inserted into the anus...preferably "vibrating". Often available with a "safety tether".
As I walked away from the mirror I found that my butt egg had become disengaged due to its safety tether.
butt egg by mto April 4, 2007
dumping your load in ones ass
butt egg by bigdrewdog October 4, 2006

egg butt 

A particularly awful smelling fart from deep within the bowels. It has the distinct sulfur odor usually associated with rotten eggs.
Stan: Dude, did you just shit your pants?

Eric: Mmmm, no. It was just egg butt.
egg butt by moraleboatanchor August 15, 2012

Eggyolk butt 

When you fart and it smells like eggs
"Oh my god what's that smell"

"Sorry I have eggyolk butt"
Eggyolk butt by Alllllllanoars April 24, 2019
a preson who is being really stupid, annoying or dumb
"your a stupid buttegg"
buttegg by Bricole April 29, 2006
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.

Man, I just watched the funniest nutshot video ever.
Nutshot by Uberflaven March 1, 2009
Word of the Day on June 26, 2026