Meaning of have one's back up | Babel Free
Definitions
To be angry or defensive.
idiomatic
Examples
“He's had his back up all morning. There's no point in trying to talk to him.”
CEFR level
C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
This word is part of the CEFR C2 vocabulary — mastery level.