too big for your britches
US /tuː bɪɡ fɔːr jʊər ˈbrɪtʃɪz/
UK /tuː bɪɡ fɔːr jʊər ˈbrɪtʃɪz/
1.
terlalu besar kepala, sombong, angkuh
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.
Sejak dia mendapatkan promosi itu, dia bertingkah terlalu besar kepala.
•
Don't get too big for your britches just because you won one game.
Jangan terlalu besar kepala hanya karena kamu memenangkan satu pertandingan.