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hissy

[his-ee]
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noun, plural his·sies.
  1. Slang. a fit of anger; temper tantrum.
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Origin of hissy

An Americanism dating back to 1930–35
Also called hissy fit.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for hissy

adj.

1905, from hiss + -y (2). Hissy fit is attested by 1983.

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Online Etymology Dictionary, © 2010 Douglas Harper