2 definitions by bneffer

Act of taking a dump. Used when said act was particularly satisfying.
Ben: Damn, your house stinks!
Ryan: Yeah, I just finished pumpin' a grump.
by bneffer November 20, 2007
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The area of and surrounding the anus.
Guy#1: When you go down on your girl, do you play around back?
Guy#2: No way dude! You know what goes on there, why would you want to nose around Duke City?
by bneffer November 20, 2007
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