too big for your britches
US /tuː bɪɡ fɔːr jʊər ˈbrɪtʃɪz/
UK /tuː bɪɡ fɔːr jʊər ˈbrɪtʃɪz/
1.
creerse mucho, demasiado grande para sus pantalones, arrogante
acting in a way that shows you think you are more important or capable than you really are; arrogant or conceited
:
•
Ever since he got that promotion, he's been acting too big for his britches.
Desde que consiguió ese ascenso, ha estado actuando como si fuera demasiado grande para sus pantalones.
•
Don't get too big for your britches just because you won one game.
No te creas demasiado grande para tus pantalones solo porque ganaste un juego.