be on a short fuse

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be on 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'm on a short fuse.
See also: fuse, on, short
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

be on a short fuse


have a short fuse

If someone is on a short fuse or has a short fuse, they lose their temper very easily. He warned Abbott that he was on a short fuse. He is irritable and has a short fuse, letting you know when he's not pleased. Note: See the explanation at light the fuse.
See also: fuse, on, short
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

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 © Farlex 2017
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