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.
"UGH Brad is such a pretentious asshole. He thinks he's god's fucking gift to humanity!"
"Whoa, chill out. You've just got a bad case of exboyfrienditis."
"Whoa, chill out. You've just got a bad case of exboyfrienditis."
by Shiksa_Goddess August 27, 2009
Pretty much any of one's exboyfriends. They are all evil or they wouldn't be exes. If you start re-dating one of them, don't say I didn't warn you. Do as I say, not as I do.
by cori777 May 25, 2009