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'GUMB' is a Internet-based acronym. It represents the phrase "Genital Up My Bum".
I really enjoyed having a GUMB the other day
by gayrights October 10, 2009
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A general derisive term possibly derived from either Jame "Buffalo Bill" Gumb from The Silence of the Lambs, or the star of the Gumby Show.
Don't fall now, you fucking gumb! I don't have you!
- Josh Lowell, 2000
by SamAdams February 01, 2005
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1. An escalator.
2. A singular 'fishy' of sperm
1. "Why take the stairs? Take the gumb!"
2. "That tadpole looks like a gumb."
1.& 2."I shot my gumb right into Stacy's mouth"
by Underscrotum August 22, 2004
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