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when one is hanging out with a female friend (girlfriend, random chick, hooker ect.ect.) and engages in sexual activities. (blowjob/handjob)

Then after ejaculation occurs, the person leaves without paying, or returning that favor.
"Yo man, i feel kinda bad"


"i was hanging out with my girlfriend today, and she gave me a bj, and then i left before she made me return the favor."

"ahh the good ol cum&run"
by garyV August 31, 2007
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