throwing a cribbsy

During sexual intercourse, when the person on the bottom attempts to roll their partner over so that they can be on top and their partner is thrown into a wall or off the bed. Throwing a cribbsy is usually unintentional, though it may be sought after by those who like to play rough in bed.

I was enjoying her riding me, but when I went to put her on her back, I ended up throwing a cribbsy, and she hit her head on the wall.