Pitch a hissy fit
American SlangDefinition
To throw a dramatic tantrum—reacting with excessive anger or upset, often over something minor.
Examples
"When the barista spelled his name wrong on the cup, he pitched a hissy fit in the middle of the café."
"My little brother will pitch a hissy fit if the Wi‑Fi drops for even a minute."
"Don’t pitch a hissy fit just because we started the movie without you; we’ll restart it."