big shot

US /ˈbɪɡ ˌʃɑt/
UK /ˈbɪɡ ˌʃɑt/
"big shot" picture
1.

pez gordo, persona importante, mandamás

an important or influential person

:
He acts like a real big shot since he got promoted.
Actúa como un verdadero pez gordo desde que lo ascendieron.
She thinks she's a big shot because she works for a famous company.
Se cree una gran persona porque trabaja para una empresa famosa.