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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.
by mto March 28, 2007
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The things that come out ur ass. Jobie, shit, crap. whatever
Man I was on the bog for hours layin a huge Butt-egg
by Marshall Law November 12, 2004
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