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12.
1. a person that's insecure with their existence, and by their own virtue, they feel the need to blatantly spew ilk and diatribe about other people that are otherwise innocent.

2. also see: keyboardracer, gayrab, Ablab, & namedrop.
Dude: "Ha! Ha! Ha! Did you see Gayrab get knocked out the other day?"

Other Dude: "Yeppers! That's what he gets for being a blowhard."
by Name Witheld August 04, 2004
54 202
 
1.
1. A very boastful and talkative person; a braggart

2. A self-important egomaniac who likes to toot his own horn, like those assholes who put bumper stickers on their cars that say "PROUD PARENTS OF AN HONOR STUDENT AT (blah blah blah) HIGH SCHOOL"
"Did you catch the State of the Union speech last night? What a fucking blowhard!"
by Rollo & Biff May 26, 2006
865 119
 
2.
Someone who likes to shamelessly talk out of their ass.
Bill O'Reilly from Fox News is a blow-hard.
by Arrow666 January 07, 2008
74 18
 
3.
an opinionated person who talks loud and way too long on the same subject, often sensationalizing the subject matter
blowhard: insert photo of rush limbaugh
by chatsnoir January 04, 2012
130 76
 
4.
Someone who talks a lot.
My neighbor is a real blow hard, he starts telling his stories and I can hardly get away before he stops talking.
by xrayok February 05, 2009
63 15
 
5.
Someone who speaks loud and long, offering an opinion YOU disagree with.
That blowhard thinks the Red Sox can come back from a 3-0 deficit. Geez!
by Ole Truth Teller July 10, 2008
169 121
 
6.
A person that is known to rant and rave about things. Their opinions are usually ignorant and lack evidence. The term comes from the literal meaning of "blowing hard". If you blow hard enough people pretty much have to listen.
Famous blow-hards include Glenn Beck and Dr. Phil.
by FlamingGuts November 08, 2009
33 16
 
7.
Someone who boasts excessively and exaggeratively about his or her imagined talents or abilities. Also characteristic of someone who thinks they know something that others do not. Blow-hards are akin to name-droppers.
"Ever since John started attending Yale University, he has become such a blow-hard."
by Nimrod Nineveh November 07, 2009
18 15