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Is “used in anger” a Britishism for something?
My boss keeps using the terminology "Doug knows X but maybe not enough to use it 'in anger'", where X is a skill, programming language, etc.
I've not heard the phrase "in anger" used this way before. He seems to be saying I am a novice or am intermediate at a skill. If I were an expert I could really achieve a sense of focussed flow to solve a problem in a high stress/frustrating situation. Hence I could effectively wield the tool "in anger" to solve a problem.
Is this a correct interpretation of the meaning of this phrase in this context? What exactly does my boss mean?