- an exceptionally boastful and talkative person.
Origin of blow-hard
An Americanism dating back to 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for blow-hard
The sight of him frightened Blow-hard so that he ran and climbed to the top of a door.
"The young squirt was always a Smart-Aleck and a blow-hard," he said.Poor White
Hes the blow-hard that was going to do all sorts of things to Liddell last spring, if you believe the papers.Full-Back Foster
Ralph Henry Barbour
Rolltar the Mars man—boastful fellow, blow-hard—he was telling some of us that in his opinion Tarrano had already run away.Tarrano the Conqueror
Raymond King Cummings
Hear-all told him what had passed, and that now he could hear Blow-hard complaining of a broken leg.