show off
US /ʃoʊ ɑːf/
UK /ʃoʊ ɑːf/

1.
exibir, ostentar, se gabar
to behave in a way that is intended to attract attention and admiration, and that other people often find annoying
:
•
He's always showing off his new car.
Ele está sempre exibindo o carro novo dele.
•
She likes to show off her knowledge.
Ela gosta de exibir o conhecimento dela.