lo sbruffone

braggart, show-off

sbruff boast + one augmentative or pejorative noun-forming suffix
noun · masculine Rare #42,828
braggart, show-off Colloquial and often derogatory.
IT: Non fare lo sbruffone: nessuno ti crede.
EN: Don't be a show-off; nobody believes you.

Fa lo sbruffone ma guarda qui.

He acts like a big shot, but look at this.

— A Taxi Driver (2017)

Certo sbruffone!

What a show-off!

— La spina del diavolo (2001)

Ammetto che sei coraggioso, ma ora non fare lo sbruffone.

I admit you're brave, but don't be a braggart now.

— La storia fantastica (1987)

Parla, sbruffone.

Speak up, big talker.

— Lagaan: C'era una volta in India (2001)