A condition afflicting a newly single woman, in which all the annoying attributes of her exboyfriend that she ignored while dating him are magnified by 10 after they break up. She finds spending any amount of time around him unbearable. Symptoms include: excessive bitching, muttering expletives under her breath, picking apart everything her ex says, and extremely annoyed friends. The only cure for exboyfrienditis is distance from the source of the disease.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.