live on (one's) nerves

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live on (one's) nerves

To be in a constant state of anxiety, fear, or worry. Marty seems to be living on his nerves ever since the accident.
See also: live, nerve, on

live on your nerves

BRITISH
If someone lives on their nerves, they are always worried and anxious, usually because they are in a difficult situation. In the run-up to the election she was living on her nerves.
See also: live, nerve, on

live on your nerves (or your nerve ends)

be extremely anxious or tense.
See also: live, nerve, on