have a short fuse

have (got) a short fuse

To have a tendency to become angered, enraged, or upset very quickly or easily; to have a short temper. I'm usually a pretty calm person, but whenever I start driving I find I have such a short fuse.
See also: fuse, have, short
Farlex Dictionary of Idioms.

be on/have a short ˈfuse

(informal) be likely to get angry easily, because you are tired, stressed, etc: Your father’s having trouble at work, so his temper’s on a short fuse today. Be careful what you say to the director. She has a very short fuse.
A fuse is a piece of string or paper which is lit to make a bomb explode.
See also: fuse, have, on, short
Farlex Partner Idioms Dictionary

have a short fuse

tv. to be easy to anger. (Have got can replace have.) He’s got a short fuse, so watch out.
See also: fuse, have, short
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • be on a short fuse
  • be on/have a short fuse
  • have (got) a short fuse
  • fuse
  • a short fuse
  • short fuse
  • short temper
  • quick temper
  • have a quick temper
  • lose one's temper