pump 

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!

pump by Zenhachirou May 6, 2003

Pump 

The act of giving your friend a ride on the handle bars of your bicycle. A term used widely in the greater Salt Lake city area of Utah.

Can you give me a "Pump" to work today?

Pump by John Willoby May 24, 2007

pump 

1) The action of repeatedly lifting weights in order to build muscle.

2) A feeling denoting extreme excitement.

3) To reload a pump-action shotgun.

1) I'm gonna go pump some iron!

2) Man, I'm pumped about the gig.

3) I think you have an idea what this is like.

pump by Ross Mackay July 26, 2005

pump 

1. to copulate

2. the heart

3. to excite

He thought he was pumping with her, but all this time he was showing her his art collection.

pump by The Return of Light Joker June 29, 2009

pump 

slang used by Marine grunts to refer to active tours of duty.

1.I got a 7 month pump in Iraq.

2.I've done three pumps in Iraq.

pump by KILLEDNACTION January 11, 2009

pump 

'bump n grindin'
when man pumps his juices into his gyal when they gettin freaky

"me n my gyal was goin hard last night, i was pumpin her deep styl-ee"

pump by charlotte * June 20, 2006

pump 

The act of taking a piss and a dump at the same time, or in the same 'sitting'.

"dude, I just took the biggest pump... now i'm 4 pounds ligher!"

pump by Chris DaCamel47 July 4, 2009