1 definition by BillWiTheScienceFi2
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 8, 2018