(technical jargon) When a situation you intended to turn out one way turns out to be completely something you never imagined. Often occuring the the area of politics, relationships or sports when an individual or group gets involved in a situation they cannot get out of. Often referred to as the state of being or art of being "fucked."
e.g. Damn, Dick, our foreign policy blows. We really self copulated when we invaded Iraq.
e.g. My date with Jill didn't turn out like I planned. She's not the dinner whore I thought she was, so I went home to contemplate with self copulation.