Made whoopsie
make/making/made whoopsie: when a man accidentally penetrates a woman's anus while having sex with her. When a penis slips out of a vagina and into the butt. In the 70's, having sex was called "making whoopee". The term "whoopsie" is something people say when they've made a mistake.
Sara is really mad at me. Last night we were having sex and I made whoopsie. I bruised her anus so she made me finish with myself. butt sex assplay shit dick anal