Wiktionary
n. Anger or panic expressed verbally loudly and with overt bodily gestures.
Usage examples of "conniption fit".
The senior people at CIA liked working with you, and you helped with funding for a project some other folks on The Hill had a conniption fit over.
He had a conniption fit for two days, and then he had another stroke and had to be hospitalized all over again.
Ritter would just throw another conniption fit, and Moore wasn't up to that on a Sunday.
If the she-animal suddenly began groaning with pleasure, if the she-animal suddenly began to throw a pleasurable conniption fit, the jaws moving like old shoe laces, the chest wheezing and the ribs creaking, if the she-bugger suddenly started to fall apart on the floor, to the collapse of joy and overexasperation, just at the moment, not a second this side or that, the promised tableland would hove in sight like a ship coming up out of a fog and there would be nothing to do but plant the stars and stripes on it and claim it in the name of Uncle Sam and all that's holy.
Aunt Ardith would have had a conniption fit at the thought of her mousy, sedate niece letting a strange man put his tongue in her mouth.
If any grownup happened to see him right then they'd think they was likkered up or having a conniption fit, he dug so fast.