Top definition
A fellow who has trouble satisfying women. Doesn't date the same girl very long because she needs more than he can offer. A minute man in the sack.
Are you still going out with Nicke?

That one pump chump, are you kidding? It's bad enough he has a boy size unit, but he usually blows off before he gets it in. One of the last minute men, a real one pump chump.
by Done with boys March 07, 2010
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