1. A male partner who has a hard time getting his shaft in the hole.

2. A male partner with a propensity for clumsiness when working his shaft down there, often approaching the wrong hole.
Barbara:  Herb was so crap in bed. He needs a map to find his way around down there. He acted like a plumber.

Bonnie:  God, I hate groove grouters, they are so clumsy!
by Saulty Wordsmiths March 30, 2010
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