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!"
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
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!
Someone who likes to shamelessly talk out of their ass.
Bill O'Reilly from Fox News is a blow-hard.
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.
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.
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."