ass bulimia
when someone purposely consumes food (e.g. dairy products) that will make them have diarrhea or just shit to lose weight.
Friend 1: Why does Gertrude keep drinking milk, isn't she lactose intolerant?
Friend 2: Yeah, but that girl has ass bulimia, she drinks milk which makes her shit so she can lose weight
Friend 1: Too bad it isn't working for her
Friend 2: Yeah, but that girl has ass bulimia, she drinks milk which makes her shit so she can lose weight
Friend 1: Too bad it isn't working for her