Striking Oil

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"

When you are having anal sex and the bottom didn't douche correctly and you end up with shit on your dick.

When you find out someone you have been going out with is loaded. This is different from a gold digger.

An act of revenge usually. While pulling out from fucking a woman in her ass, she continues to to shit on you and your dick.

You're fucking a guy or girl up the ass, giving it to him/her with great gusto, and suddenly things start to smell pretty rank due to the uncontrolled release of feces, aka shit, or in the worst case scenario, diarrhea. This happens more to guys with dicks 8" or longer since they open the rectum's upper sphincter,

when you bring on a period through intercourse with a woman.

The definition of striking oil is when the dirty bitch go's on all fours and spreads her ass hole open and squirts a hell of a lot of lube up that ass. Then the horny mother fucker approaches the lubed up ass hole and plow that bitches hole until she makes a ummpphh sound and a whole lot of brown shit and lube squirts out of her ass hole like a fucking hose. Then you punch that bitch in the face and take a hot steamy shit on her face.