To be very anxious, upset, or frightened. They had the wind up after we threatened them with legal action.Carrie has the wind up because she's waiting for the doctor to call with her test results.The passengers over there all have the wind up because their plane had to make an emergency landing.
(British English, informal) become/be frightened about something: I heard that he’s selling his business and moving away. I think he’s got the wind up about something or other.
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