look up any word, like donkey punch:
 
1.
any possible way to make a guy have an erection
when me and my girls went streaking that time , all the guys called us penis pumpers
by penis pumpers August 07, 2009
 
2.
1. an object that makes your cock bigger
2. an insult to a dumbass
you penis pumper y did you fuck my gal!
by eric September 26, 2004