Pump The Pipe

to masterbate. pumping the pipe originates from the ancient art of placing a hand over ones shaft and moving the hand in a linear motion making sure to pull back the foreskin exposing the urethra ready for ejaculating the semen.

A popular misconception of this phrase is doing the same hand motion whilst urinating to give the false impression of a constant stream of clear semen but infact its just piss.

"Dude this morning I missed breakfast and was starving in class so I had to run to the toilet and pump the pipe into my mouth"

by Munchkin Whore March 18, 2010

pump a grumper

to take a huge hard dump

damn im never gonna hti a mexican buffet liek that again, i had to pump a grumper really bad ten minutes later

by collinD May 30, 2006

pump and dump

when a guy has sex with a girl with the intent to only get a nut. it consists of 1 - 5 pumps or thrusts followed by ejaculation (dump his load) followed by the departure of the male to go back to the party or wherever it was that he met the victim of the "pump and dump"

much to sallys displeasure, her and jacks sexual experience at keegans party consisted of only a pump and dump in the bathroom.

by SMairlines May 22, 2009

pump out

1.to produce or mass produce a product.
2.to pump a liquid out of an area.

1.i'm planning on pumping out a new clothes-line
2.captain: pump out that water before we sink!
skipper: aye, aye!

by Zebra5000 September 2, 2008

pump and dump

To pump a stock that you own and dump it when the price goes up.

Stay away from QBID it is a pump and dump.

by Fred Silvia September 25, 2005

pump action yoghurt rifle

Word used to describe the male reproductive tool

Sean used his pump action yoghurt rifle with comparitive ease, deploying his semen all over Caitlin's face

by Dave Catmur December 2, 2003

Pump My Blood

Derived from East End (London) gang culture in the 21st century, from organised crime factions such as The Firm or Yardies.
To boast about someone else's possesions or actions.

"You've got a nice car"
"Yeah, pump my blood"

by Dr. P. Robbins March 14, 2005