Top Definition
A depression in the cushion of a couch or chair formed by many hours of sitting. First known usage by Homer Simpson.
Don't sit in my ass groove! You'll mess it up.
作者 kelly 2003年9月12日
1 more definition
1 Word related to ass groove
Ass grooves were left from sitting on the coach all day.
作者 dwayne 2004年5月12日

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