When you meet a drunk girl at a bar or club and you go back to her room for a one night stand, after you have sex with her and she passes out, you shit in her panties so when she wakes up in the morning itching herself she thinks she shit herself.
Tom: How did it go with that red head Teresa last night?
Pat: It got really weird man. I did some really messed up stuff.
Tom: like what?
Pat: Well it involved putting a log on the fire if you know what I mean?
Tom: You took a shit on her bush?
Pat: Yeah