Top definition
A man's sexual organs, as opposed to his usual so-called-brain, the upstairs brain.
Mike wasn't digging Jen, but three beers later he was thinking with his downstairs brain. Now he has herpes.
by MWazza April 17, 2009
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Jul 1 Word of the Day
It's the sweat that accumilates under big boobs
It was so hot outside that I had mass amounts of boob sweat.
by Tiffany2583 January 05, 2007
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