the act of fucking your girl in the ass, cumming, and then proceeding by peeing in her bootyhole.
"Bro, you got with Selena Gomez last night?"
"Yeah man, I was totally pumping gas up in her ass last night."
3👍 1👎
A polite way of saying that you have to or have already farted.
i.e.: "I ate a lot of beans and now I am pumping gas".
"Who just pumped gas?" "I've been pumping gas all night."
6👍 4👎
When someone says something a little freaky!!
Are you gas pump light bulbing me rn??
A gas pump is when you stick your penis in another mans ass, and fill the cavity with urine.
"Just got a gas pump earlier, still leaking out."
I gave her the Indiana Gas Pump, now she's got herpeghonnasyphillaids.
When you start peeing in the middle of having sex.
"Yo, last night I gave dis hoe a Russian Gas Pump, she totally dug it."
"Yo....that's disgusting."