When male finds a girl so smashed they are paralytic, goes for a quick few pumps in the vagina. Then gets the fuck out. All without being noticed.
Man: that girl looks good enough for a one pump run.

Friend: Yh I agree, go for it!
by D Steveo November 30, 2016
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Having sex once with someone you meet at a running event or race.
I met this chick yesterday at the race and after chowing down some free food, I had a one-run stand.
by sixshooter April 6, 2010
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To have a strictly sensual "no strings attached" relationship with a female. Get in and get it done. A fair exchange.
Macafram: Yo man your name is always on Susies mouthpiece, what's the deal?

Nice N Scmoove: Yea don't sweat it, she's only fretting cause' my number one rule is run up through it released the fluid bounce out cause thats what im bout and she never knew it.
by thaPacketman3 June 13, 2011
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To have a strictly sensual "no strings attached" relationship with a female. Get in and get it done. A fair exchange.
Macafram: Yo man your name is always on Susies mouthpiece, what's the deal?

Nice N Scmoove: Yea don't sweat it, she's only fretting cause' my number one rule is run up through it released the fluid bounce out cause thats what im bout and she never knew it.
by thaPacketman3 June 13, 2011
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When you go on a first date and realize that it's not you, it's them. Bad date. You only need to have one before you run.
Friend 1: "How was your date with so-and-so?"
Friend 2: "Oh gosh, that's not happening again."
Friend 1: "Another one and run."
by magomeche July 2, 2013
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