brush off
US /brʌʃ ɔf/
UK /brʌʃ ɔf/

1.
ignorar, descartar
to ignore or dismiss someone or something in a dismissive way
:
•
She tried to talk to him, but he just brushed her off.
Ela tentou falar com ele, mas ele simplesmente a ignorou.
•
Don't brush off his concerns; they might be important.
Não descarte as preocupações dele; elas podem ser importantes.