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when an attractive girl is so hot, that if one were to grasp one's penis firmly, one could only hold their load for a single pump.

part of a rating system, one pump being the most dime babe you'll ever find,

not to be confused with no pump or two pump
Guy 1 - 'daaayumm! check that babe out! hands down, she's a one pump'
Guy 2 - 'truuuu! she's dimee'

Guy 1 - yooo, check her outt
Guy 2 - she's defs a one pump..
Guy 1 - get on that, bro
Guy 2 - chea right, it's hard enough for me to get with a two pump !
by millarke February 28, 2011
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3
When object a destroys object b in one swift motion.
Guy 1: What the fuck bro?!?

Guy 2: What happened man?
Guy 1: This no skin just one pumped me in Tilted Towers.
Guy 2: Bro that sucks.
by Stealthtaco August 02, 2018
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