A term generally used to describe a person of New Zealand decent who engages in sexual relations with sheep.
Person1..Hey Bro i am from Nz
Person2..Gday mtton pumper

Person1..Hey Bro, NZ is sweet bro.....
Person2..Fuck up mutton pumper!!
by Nin Ja October 15, 2011
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One who follows lil pump
"do you fuck w lil pump?"
"Yeah bro, I'm a pumper!"
by Hazy_thoughts420 May 10, 2018
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Being long a stock and saying anything positive about that stock in a public platform, according to IHUB forum standards.
Captain Black Bob Blanco accused me of being a pumper because I said I like the stock
by DiscordPC August 15, 2023
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A person who spends an exorbitant amount of time tugging on their own penis for pleasure.
I've heard Aloris masterbates to his own raid parses. He's quite the pumper.
by anongg October 12, 2022
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WHEN YOU HAVE A FAT FRIEND IN NEW JERSEY WHO PUMPS GAS.
HEY HONKEY GAS PUMPER WANT TO BLAST INSANE IN THE MEMBRANE AND GET FIRED.
by WACKYJK33 July 8, 2022
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A guy who likes to grind his penis into a woman's ass while she is still wearing her panties.
Most panty pumpers love to have sex with girls who wear skin tight panties.

Panty Pumper: Boy, I'd like to pump her panties !
by Duckman16 October 13, 2014
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