Unrestrained caniption, major tantrum, major and hilarious expression of anger.
She threw a hissey fit when her car was not repaired on time.
an old term, used more that a hundred years ago, to refer to a black baby. The term "hissey fit" refers to a crying spell by the baby.
By way of explaining my knowledge of this matter, I am 68 years old and I was told of this explanation by my mother, who died many years ago, at the age of 90. It in no way means that either of us approve of any perceived slight by this entry.
"Now, don't you throw a hissey fit."