To grab someone by the scruff of the shirt and repeatedly punching them in the chin.

Replicating the motion of pumping for yabbies in the sand.
That mouthy bloke up at the bar is cruising for a yabbie pumpin'
by TheofficialBeerfridg August 17, 2022
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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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When a friend tells you they are gonna hang and you are expecting them to come through, but then they flake out every time.
John: Hey man I can't wait to see you guys at the party!

James: Hell yea man, I'll see you there!

*6 Hours Later*

James: Hey, where you at man!?

John: Sorry I couldn't make it, I got busy.

James: Aww, come on man, stop pumpin nuts!
by RonJerm May 20, 2023
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Like in the movie American Pie. The BDSM version includes whipped cream.
Bobo, get your dick out of the pumpin pie!
by HumaneAnimal October 12, 2017
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engaging in the act of butt-fucking, or picercing the giblets.
I got done fuckin' the pussy and then I truned her over and started pumpin' the rump.
by Bill B. June 24, 2005
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to shoot someone with a shotgun (shotgun uses slugs as ammo)normally a 12 gauge, listen to mo murda for example
"Givin' up shots out to the glock-glock: eighty-eight through the ten-five, them killas be pumpin slugs." Mo Murda by Bone Thugs n Harmony
by el ben June 26, 2006
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