verb
bristle
BRIS-uhl/brˈɪsʌl/
To react with anger, irritation, or defensiveness.
The older woman starts to bristle at the accusing gesture.

Etymology
Rising bristles suggested visible agitation, so the word extended to becoming angry or defensive.
To react with anger, irritation, or defensiveness.
The older woman starts to bristle at the accusing gesture.

Rising bristles suggested visible agitation, so the word extended to becoming angry or defensive.