5 pump chump Share definition Flag When a guy is having sex with a girl and after 5 "pumps" is done. Girl: Is that it? Guy: I haven't had sex in a long time. Girl: Oh you're a 5 pump chump. 5 pump chump by cc3939 January 18, 2009 0 0 Get merch Get the 5 pump chump mug. Buy Now — $32.95 See more merch