Top Definition
A porte-manteau of "uterus" and "gluteus maximus"

1. a homosexual male's butthole
2. a butthole used for buttsex, male or female
"Yayahh mayne, dat waz a tight gluterus."
#butt #butthole #buttsex #gluterus #uterus #gluteus maximus
by Lewis Carroll February 17, 2013
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