someone's blood is up

US /ˈsʌm.wʌnz blʌd ɪz ʌp/
UK /ˈsʌm.wʌnz blʌd ɪz ʌp/
"someone's blood is up" picture
1.

o sangue ferveu, estar muito zangado

someone is very angry or excited

:
When he heard the news, his blood was up and he started shouting.
Quando ele ouviu a notícia, seu sangue ferveu e ele começou a gritar.
Don't say anything to him now, his blood is really up.
Não diga nada a ele agora, o sangue dele está realmente fervendo.