This process occurs when two people are spooning, with one member of the party completely hating the experience. Typically the little spoon, this victim of misplaced affection commonly wakes up on the very edge of the bed trying to get free, only to encounter a body mass clutching them ferociously, like a rabid Koala.
Also see Xanax, Spooning, and Koalas
"I really hate to spoon after sex, but when I woke up he was koalabearing the shit out of me. I'm never taking Xanax again."