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go spare

vb. 1 To be available or unused. 2 (context UK informal English) To become angry, to lose one's temper 3 To become frustrated or distressed. 4 (context archaic English) To be unemployed.

Usage examples of "go spare".

He thought he could almost take off his envirosuit, but then Carialle would probably go spare.

You realise Dr Hodgkinson's going to go spare if he sees an article about the lab.