Have/throw a fit
Definition 1 of 2
Pro Tip 1/3Colloquial Use
The phrase is informal and typically used in casual conversation, not formal writing. 
My mom's going to have a fit if she sees this mess!
Pro Tip 2/3Exaggeration
Often used to exaggerate emotions for effect, may not mean literal loss of control. 
Dad will have a fit when he hears you borrowed his car without asking.
Pro Tip 3/3Cultural Nuance
Considered childish or unprofessional; adults 'having a fit' can be viewed negatively. 
He's too grown-up to throw a fit over a video game.