have a quick temper
US /hæv ə kwɪk ˈtɛmpər/
UK /hæv ə kwɪk ˈtɛmpər/
1.
to become angry very easily and quickly
:
•
My boss tends to have a quick temper, so be careful what you say.
•
She's a sweet person, but she can have a quick temper when she's stressed.