Someone who can't stop talking.
Joe Shmoe: Billy must have diarrhea of the mouth.
Bob: What do you mean?
Joe Shmoe: He won't shut up!
Bob: Ohhh.
by Bagdaddy May 29, 2006
14 more definitions
Top Definition
A person, who usually isn't very intelligent, who will not shut up. It's typically a cover for their own inferiority.
Damn, shut the hell up dude. You sound like Dabo Swinney with all that diarrhea of the mouth!
by C-dog73 June 15, 2012
When someone won't STFU and keeps blabbering their inane chatter.
See RuffBuff.
by All of RedOut.org September 25, 2003
Talking too much, usually about something unimportant.
Susie has diarrhea of the mouth.
by Shawn B. April 14, 2003
When someone won't STFU, and he doesn't realize that everyone stopped listening a long time ago.
Aerofan thinks he sounds intelligent by padding his speech with a ton of words. But we know the truth. He's only compensating for his small penis. He has diarrhea of the mouth. SHUT UP!
by justahandle2007 January 17, 2007
constant talk with no information value. unstoppable talking. saying alot but saying nothing at all, not to be confused with saying alot by saying nothing at all. meaningless and unstoppable talk. drug-induced chatter. politics. barf.
That girl has a serious case of diarrhea of the mouth
by Tomsoma March 22, 2003
an imaginary medical problem that is supposed to account for someone talking too much
Man, that guy has a serious case of diarrhea of the mouth. God he is annoying.
by Light Joker January 14, 2005
1. A term used to describe a person who cannot or will not stop talking, no matter how boring or pointless their topic of conversation is
2. A person who describes to you the antics of their cat, Snowball, until your eyes glaze over
My boss has diarrhea of the mouth; our last conversation involved donkeys, bananas and his obsession with trains.
by Lois the Lane November 02, 2009

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