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4.
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
 
1.
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
 
2.
When someone won't STFU and keeps blabbering their inane chatter.
See RuffBuff.
by All of RedOut.org September 25, 2003
 
3.
Talking too much, usually about something unimportant.
Susie has diarrhea of the mouth.
by Shawn B. April 14, 2003
 
5.
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
 
6.
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
 
7.
1. a condition where some obnoxious bozos are always throwing their weight around and belittling all those who don't agree with them. Such people think they "know it all" about everything when they really know zero because everything they say is a load of crap.

2. a similar condition where someone cusses way too much because he/she thinks it's "cool" but it really makes said person look like a stupid juvenile fool.
1. today in this age we are swamped by a lot of people who have diarrhea of the mouth.

For example, certain politicians wasted time and money holding sessions geared strictly to determine if an opposing party should be labeled as "socialist". They don't even know what socialism is, and there's too many problems that require remedial action NOW. These dunderheads got a case of petty stupidity. There's no time for it now.

2. On an ICP album and one by Limp Bizkit there are songs that actually tell you how many times they use the word "fuck". It's over 80 times each! Now that's a case of major diarrhea of the mouth.

3. Lee is watching TV and an ad for some airline is on. The host just keeps on blabbing on and on. He's offering reduced air travel rates only IF Lee schedules his flight on certain times of day, on certain days of the week, using a certain credit card, showing proof of ownership of a new Subaru car and he must've kissed Marilyn Monroe. So many conditions! Lee thinks that the ad host has diarrhea of the mouth - all he's saying is total SHIT.

4. Kid Rock should be renamed Kid Ego. He's got absolute diarrhea of the mouth.
by Starpunk May 23, 2009