Hissy fit

[Jessica]

An unreasonable emotional out burst.

[Sonia]

A short-lived temper tantrum.

[Jessica]

A [sudden] but violent [outburst] of a person shouting, screaming recriminations and (possibly) wailing, generally short-lived but shocking.
[Hissy fit] used to describe an adult [tantrum] but now has become an equal opportunity description, young or old, male or female. What they all have in common is no matter how severe the (alleged) offense, there is always some [wounded pride] involved, and usually an audience of [bystander]s along with the culprit who allegedly triggered the hissy.
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[Dave Paprocki]

A [sudden] but violent [outburst] of a person shouting, screaming recriminations and (possibly) wailing, generally short-lived but shocking.
[Hissy fit] used to describe an adult [tantrum] but now has become an equal opportunity description, young or old, male or female. What they all have in common is no matter how severe the (alleged) offense, there is always some [wounded pride] involved, and usually an audience of [bystander]s along with the culprit who allegedly triggered the hissy.
.

[Oralee]

noun. A sudden [outburst] of temper, often used to describe female anger at something trivial. Originally regional from American South. Thought to [originate] from contraction of [hysterical] fit.