by Damalyssien January 11, 2008

Taking a dump and a shower in the same trip to the bathroom. This is for maximum efficiency and cleanliness, as one leaves the bathroom with a clean ass and maintains that cleanliness until tommorrow's shump.
by Tommy Rylander November 3, 2003

by BlackFalcon448 December 1, 2011

by MikeHawk69 September 9, 2012

by Paul Webb December 20, 2006

by eben April 8, 2003

When a man unleashes two monster size loads into the same persons mouth, but is 2 separate ejaculation, in a short time frame.
Bro 1: I heard you took Sally home last night, bro. What did you do?
Bro 2: She gave me a 2 pump shump!
Bro 1: Dude.
Bro 2: She gave me a 2 pump shump!
Bro 1: Dude.
by BillWiTheScienceFi2 November 7, 2018
