Where you take a gas pump or any form of a gasoline dispensor, and put it in a girl's vagina and begin to fill it with gasoline. You then light your penis on fire and begin to have intercourse with her.
"Hey Hubert, I gave my girlfriend The Atomic Gas Pump last night."

"My pussy is still on fire from The Atomic Gas Pump I got last Christmas."
by Harry Megaboner May 3, 2009
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When the driver of an automobile exits the stopped vehicle during a red traffic signal (stop light, red light) and urinates. The driver must finish urinating before the traffic signal changes to a green traffic signal (green light, go). If the driver does not finish urinating before the signal turns green he is to be scorned and ridiculed harshly by occupants within the vehicle and all surrounding vehicles and their occupants, however if the driver completes the task he is to be applauded by all.
Did you see me do a Puerto Rican Gas Pump? The light turned green just as I finished.
by Gomez McTaco May 16, 2011
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A term meaning "hurry up" or "go faster"
You better pump gas on that blunt if you wanna make it to Taco Bell before 2am
by Papa Moyer July 26, 2009
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The action of masturbation.

Can be done to one's self, such as pumping your own gas, or have it done by another, in the action of having your gas pumped.
After she left me for another guy, I had to go back to pumping my own gas to shitty porn.

Last night this chick was pumping my gas, no questions asked.

Pumping gas, we all do it at soome point.
by ives1337 August 9, 2010
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Ajiboye after being dismissed from the team wound up pumping gas. Something which Lane Kiffin prophetically predicted.
by What? What? What? April 11, 2009
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when you commit anal then pee in your partners asshole
Diana let me finish pumping gas into you!
by justicedrizz December 19, 2018
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The action in which you are fucking your bitch in the fucking anus, and then proceed to piss in her asshole.
Hey Ronnie, are you gonna go pumping gas with Ashley tonight?
by Greg Heffley's left nut March 10, 2020
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