blow-hard

I love that we took this guy who was trying to be a blowhard but got into his head and showed the other side.

On the other hand, Lawson did find high-ranking military sources who knew the man, though they tended to regard him as a blowhard.

But Old Rock Jaw, in more of a blowhard mood even than usual, couldn't let well enough alone.

Not that I believe in the braggart and blowhard, but a chap must have nerve to put himself ahead if he wants to keep in the game.