N - The opposite of moshing. A group of guys and girls that grind and make out, sometimes going all the way in the crowd at a concert. Usually during raves.
Dude #1: I'd rather go Pumping at a concert than Moshing.

Dude #2: Dittto, better to make out with hot chicks than rub all over sweaty guys.
by Pyre Punk February 10, 2011
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Doing something with a very high level of enthusiasm or awesomeness. Also can be referred to as PUMPing weights.
Terry: How'd you do on that math test?
Tim: I PUMPed right through it.

Frosty: You look fresh today dawg.
Liquid: I PUMP all day, everyday.
by Liquid All Day March 21, 2011
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To get jiggy with someone; the act of having sex with another person or object(a cone for example)
Uhhh uhhh pump it pump it!
by John Matt June 20, 2003
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1.) A shotgun (pump-action, obviously)
2.) Sell drugs
1.) I got a pump in the trunk, cuz!
2.) I'm always pumpin' crack, cuz!
by Zenhachirou May 7, 2003
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when you grab the meaty part of someones upper arm like by their bicep and pump it by clenching and unclenching your hand around their arm. This should be used when someone is excited, nervous, turned on, or scared
"omg did you see that hot guy?" (pumping arm)
by gettinslizzard April 28, 2010
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