be on/have a short fuse
idiom
informal
: to have a tendency to become angry very quickly
The boss is known to have a short fuse.
Cite this Entry
“Be on/have a short fuse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/be%20on%2Fhave%20a%20short%20fuse. Accessed 30 Oct. 2025.
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