by John Timyson September 16, 2013
by MCSF November 20, 2014
n: a person usually a man that masturbates while taking long bike rides.
v: the act of cycle pumping
v: the act of cycle pumping
by Jesse Atwell June 19, 2003
A young guy, shy, loner, usually a teenager, often a geek, who does not have a girlfriend and spends far too much time alone, often at home in his bedroom, when other people his age are out having a good time. The implication being that he is wanking or fucking, i.e. "Pumping" his mattress because he can't root a real Sheila. The meaning of the term and it's use might have nothing in common.
An underage drinker (under 18) is in a bar and bumps, into a grown man who shouts at him, "Piss off, you little mattress pumper".
by sbjkd January 19, 2009
Men of questionable sexual orientation. He frequently sports large hair and an orange-glo tan. He usually wears colored printed t-shirts and pumps his fists like a spastic jackass while listening to techno music. Often behaving like a dumb moronic drunk stumbling across the floor having no game.
by cocoa puff August 22, 2010
Someone who will have sex no matter how disgusting it is and it doesn't matter if the sex is with a boy or girl. In fact the douche pumper almost prefers sex to be nasty. They like having sex with girls on the rag and boys with full colons.
Oh my god Duane! did you really just make it with that stanky chick? What are you? Some kind of Douche Pumper?
See Also: blender, jewdapp, hodapp, Crohn's Disease
See Also: blender, jewdapp, hodapp, Crohn's Disease
by Rare Hare July 19, 2006
by Philllip August 26, 2007