blowhard, n.All

Blowhard is one who is always popping off like a shirt button.

Blowhard is one who blows his horn the loudest, but that's because he's in the biggest fog

A Blowhard is someone who fills the air with speeches and vice-versa

A Blowhard is a canned scream

A Blowhard is one who never keeps his trap shut until he puts his foot in it.

A Blowhard is like a shirt button, always popping off