This word is posted to a topic tread if the poster wants to re-call attention to the thread.
Most regular forum users typically hit "new posts" to read new posts since their last visit, so an old topic will be lost to these readers. Bumping a topic is essentially "bumping" it back into view for most readers.
by mackaroon May 18, 2005

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To put drugs (like meth) in your vein using a syringe.
This shit, is wearing off I could use a bump.
by i riot November 01, 2014

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Bump is a new way to send a message to someone who is driving, or a way to send a message to someone's car (through their license plate).
I saw a hot chick driving down the 405 so I bumped her.

I bumped the asshole who cut me off.
by technobrad April 21, 2011

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To Fuck Or Have Sex With Someone
Yo Man, I Bumped That
by t_baggs April 18, 2007

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A pregnant woman's growing abdomen
It seemed that her bump grew bigger by the minute in the last days of her pregnancy.
by circlesquarer June 20, 2006

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A hand signal exchanged between friends in which they each bump each other's fists thumb-side up. Many friendly people have this worked into a set handshake that may also include a hand slide or other sophisticated hand greeting.
Homeboys bump it when they kick it.
by T Hizzle April 22, 2005

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to be taken, cheated, conned, overcharged
"i had to pay £15 for da drink"
"what a bump"
by kimberley kass April 13, 2005

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To play your music ridiculously loud
Bump it!
by anon June 10, 2004

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