brush off
US /brʌʃ ɔf/
UK /brʌʃ ɔf/

1.
ignorar, desestimar
to ignore or dismiss someone or something in a dismissive way
:
•
She tried to talk to him, but he just brushed her off.
Ella intentó hablar con él, pero él simplemente la ignoró.
•
Don't brush off his concerns; they might be important.
No desestimes sus preocupaciones; podrían ser importantes.