hysterics
1 n-plural If someone is in hysterics or is having hysterics, they are in a state of uncontrolled excitement, anger, or panic.
INFORMAL oft in N
I'm sick of your having hysterics, okay?...
2 n-plural If someone is in hysterics or is having hysterics, they are in a state of violent and disturbed emotion that is usually a result of shock.
oft in N
(=hysteria)
It was such a shock I had hysterics...
3 n-plural You can say that someone is in hysterics or is having hysterics when they are laughing loudly in an uncontrolled way.
INFORMAL oft in N
He'd often have us all in absolute hysterics.