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Related to conniption fit: hissy fit
An outburst of rage, frustration, or ill temper. My mom's going to have a conniption fit when she sees what happened to the car! I was so embarrassed when Danny started having a conniption fit in the grocery store.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. a burst of anger; a spaz. He had a conniption fit over the question of my marriage to Fred.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.