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The act of gathering in a small place with 30 or more people and a household item. When the item is set off, the crowd proceeds to "flip their sh*t" until they become too tired to continue.
"Hey you guys wanna go do some pumping after lunch?? See you in the bathroom!!!"
Pumping by Anderswag February 19, 2012
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"Man, I hate visiting relatives. Pumping is even more embarassing than pugging."
Pumping by Joe hender August 16, 2008
Pumping like skunt
Pumping by anonymous January 3, 2022
underground plastic surgery that injects, or "pumps" silicone in certain areas.
person 1: "did you see Jessie lately? she cant afford surgery, she must've gone pumping"
person 2: "yeah! she looks good, but i hope it was done safely."
Pumping by ratgirl42069 November 1, 2022
When a gym bro pumps or takes an excessively long time in between sets at the gym
Matt is pumping again.
Pumping by Mattsrightagain August 11, 2023
to vigorously thrust in and out of a tube or cylindrical shaped object suctioning all the air out, like an air pump, then nutting inside the object filling it to the brim with cum.
YO! That boy really is pumping inside a salt shaker! That's my boy!
The act of sucking air into your butthole while bent over with spread cheeks, and pushing it out to make a fart-like noise.

Discovered by ‘Skinny P’ in Calgary, 2024.
Me and Jayden love pumping together!
Pumping by QueefPump January 9, 2025