buck up
US /bʌk ʌp/
UK /bʌk ʌp/

1.
animar-se, animar alguém
to cheer up or to make someone feel more cheerful
:
•
Come on, buck up! Things aren't that bad.
Vamos, anime-se! As coisas não estão tão ruins.
•
She tried to buck up her friend after the bad news.
Ela tentou animar a amiga depois da má notícia.