A "spitfire one" is a person, which could also be adressed as a hotshot, a hothead or someone who is known for having a short fuze and complains a lot over things they cannot change.
He's a spitfire one, dont mind him, he'll get over it.

Peter is such a spitfire one, I can't stand him being so whiny about everything.
by poggio2 June 26, 2022
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