1) Overusing exclamation points in a vain and failing attempt to make your writing sound more exciting. Trying to put more "bang" in your prose, but looking instead like you have exclamation point diarrhea.
2) Obsessively talking about sex, or "banging." An oral disorder usually found in those who aren't actually having sex.
"Checking in with a bad case of 'bangorrhea' -- the official 'grammedical' term for exclamation-point overdose -- is Kanye West. In a single blog post, West used 188 exclamation points. At least we think it was 188. We tried counting and the ordeal made our eyeballs twitch." --Martha Brockenbrough, MSN Encarta columnist
"Did they do sharies
? Did you watch? I do that all the time. Did they do tasties after? I do that all the time. Then did they have sex? I do that all the time."
"You have got a serious case of bangorrhea."