Medically known as bulimia nervosa, when food is forcefully vomitted by an individual (effectively "Tasting it twice");
popular (and rather playful) way of referring to it in the 80's and early 90's before it was widely acknowledged as a disorder. Still used in crowds that either (A) Are
ignorant to the risks or (B)
Don't give a damn about the risks and regard it more as a diet.