Your blood is up Meaning in English
expression
Definition
If your blood is up, you are feeling very angry, excited, or ready to fight. It means strong emotions are driving you, usually in a heated or tense situation.
Usage & Nuances
Used mainly in British and Australian English, somewhat old-fashioned or literary in American English. Describes a state of excitement, anger, or readiness to act, often suddenly. Often seen in historical or dramatic contexts. Not used for minor irritation—it's about strong, heated feelings.
Example Sentences
When your blood is up, it's hard to think clearly.
basic
Don't say anything while your blood is up.
basic
Your blood is up before a big game, isn't it?
basic
I could see his blood was up after that insult.
natural
Once her blood is up, there's no stopping her.
natural
Don't try to reason with him now—his blood is up.
natural