frighten (one) out of (one's) mind

frighten (one) out of (one's) mind

To shock or scare one very suddenly or severely. Hyperbolically alludes to frightening one so severely as to cause them to become insane. Don't sneak up on me like that—you frightened me out of my mind! That car accident really frightened Janet out of her mind. She's still shaken by it.
See also: frighten, mind, of, out
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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