When a man pours a large amount of lube on his penis and in the asshole of his sexual partner in order to assure a well lubricated fit. After the male is finished with the intercourse, and pulls his penis from the other person and the other person shits creating a liquid that is a mix of shit and lube. This liquid looks similar to crude oil so the word is "Striking Oil"
"DUDE!!! I am totally striking oil with my girlfriend tonight."
"Dude I Struck Oil last night and it was all over the sheets"
"Dude I Struck Oil last night and it was all over the sheets"
by Kelvin Haus October 30, 2008
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