1 definition by Buperter

Top Definition
A Pump Like Instrument, That Is Used For Clearing Out Ones Rectum, Prior To Anal Sex.
John: Ima Do Her In The Arse Later.......

Tom: Make Sure She Bum Pumps First, Otherwise, She Will, Without A Doubt, Dirty On Your Cock Stick...
by Buperter August 06, 2011

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