Misspelling of hissy fit.

(idiomatic) Very agitated or distressed; enraged.

(of clothing) Snug, skintight.

intermittently, jerkily

(idiomatic) To experience an epileptic seizure. / (idiomatic) To become suddenly enraged.

plural of hissie fit

(informal, US) A tantrum; an excessive display of anger or disapproval.

(Britain) appropriate, and of a necessary standard, for its intended use.

plural of hissy fit

(idiomatic) To become angry, enraged, or upset; to act or react with an outburst, as by shouting, swearing, etc.