flip one's lid
idiomatic phrase
variants
or chiefly US flip one's wig
informal
: to lose one's reason or composure
You can't just up and quit! Have you flipped your lid?
Grandpa's been just dying for something like this. If he saw it, he would just flip his lid.—
The Munsters
The Munsters
especially
: to become very angry or enraged
His mother flipped her lid when she found out what a risk he'd taken.
You say after flipping his wig he calms down, reflects and apologizes. That's a good sign. —David Eddie
David Eddie Cite this Entry
“Flip one's lid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flip%20one%27s%20lid. Accessed 5 May. 2025.
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Merriam-Webster unabridged
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