When a guy is having sex with a girl and she is bored so she watches tv as he is pumping away like a chump.
I watched part of an infomercial while he was chump pumping away. Sex is soooo soo on boring with him anymore
af athena2013 17. november 2013
A term used to define one who continually loses at 7 ball.
Boy, Rob sure is a Chump Pump!
af RC3 11. september 2007