Top Definition
The Butt Gorilla is a nocturnal primate who climbs into young boy's windows at nite, and commences to have butt-secks with them. His voice sounds eerily like...your Dad's.
Boy: "Dad, I had a nightmare that a man in a gorilla suit humped my butt. And it really hurts!"

Dad (With a twinkle in his eye): "Oh, that ol Butt Gorilla must've visited you last night! Now hurry up and put this dress on!"
by jvarna5 January 30, 2008
5 Words related to Butt Gorilla

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