1 definition by Munchkin Whore

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

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×