1 definition by PNWTigerLily

1. A term for a guy with a small penis that, no matter how long it takes, will completely destroy your hole.

2. Sometimes it's a sex act preformed by men in isolation using a hole in the wall covered by a poster for privacy.
1. I didn't think he could get the job done, but Sarge is a total Geologist Hammer!
2. The guy that used to live in this cell, did the Geologist Hammer behind that poster of Raquel Welch.
by PNWTigerLily November 6, 2018
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