When you've got the raw end of a deal, most commonly associated with cannabis.
Dan: Here Dave, I got 10 oz of skunk, lets party!
Dave: This isn't skunk, it's parsley! a fucking herb! And its only 2 ounces, you've been seriously bumped!
by The Master E March 14, 2007
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Word used as a descriptive for being stiched-up in any particular sale or transaction. Commonly heard on the streets and housing estates of South London, UK following a drugs deal.
Damn! I paid for 14 ounces of weed, and I got given 10. I got bumped!
by DC December 10, 2004
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Used to agree with someone, therefore bumping the idea to the next level.
Someone: Hey why don't we all go get high?

You(in support): BUMP IT DUDE!!
by ROFLcopter February 9, 2005
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A small portion of cocaine. Usually offered on a key or a pen cap lid that has a long lip, or any other instrument that can hold aforementioned portion of cocaine. Can also be used in reference to methampthetamine, though more often with cocaine. Also referred to, when using a key as a key-bump. Most often, a bump is something requested and passed between friends at bars or cantinas, and then done in a restroom stall after the go-ahead is ok'd.
Partier #1: 'Yo, man, you got another bump from that 20 bag for me? I'll buy you a beer or something later.
Partier #2: 'It's the last time, asshole, you told me you'd buy me a beer for the last bump, dick.'
Partier #1: 'Hurry up and give me one, fuck-tard, before someone walks into the fuckin' bathroom. Shitty coke anyways, dick!
by coozehound72 August 18, 2010
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1. non-medical term for the virus known as herpes simplex.
2. HSV1 or HSV2
1. She got the bumps.
by Gran Hota / M. Nice October 25, 2007
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The word 'bump' is often used in a forum to get more views, or in Gaia Online, to get more gold. Bumping is also a useful way to get more views in a support forum and to get more gold in Gaia Online.

Sometimes, bumps aren't allowed and you can get suspended/banned for spamming.
HonorOfTehNinja: bump

*TehPro banned HonorOfTehNinja*

(Reason: Spamming. This isn't Gaia Online, you know)
by MisaTange July 6, 2009
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Old-school definition: to have sexual intercoarse with someone of opposite gender. See also bumping uglies.
Jenny and I were bumping uglies on the side of the road when a cop came along and harshed our groove.
by Lornius May 2, 2006
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