a one-trick pony

/ə ˌwʌn trɪk ˈpəʊni/INFORMAL · C1

Meaning

someone or something skilled at only one kind of task

Examples

  1. 1The app is a one-trick pony: it crops photos but cannot make any other changes.
  2. 2Don't call Malik a one-trick pony; he sings, dances and writes his own music.
  3. 3As a comedian, Joel is a one-trick pony; every routine relies on exactly the same impression.
  4. 4This kitchen gadget is a one-trick pony; it peels apples and cannot handle any other task.
  5. 5Unlike her versatile colleagues, the designer is a one-trick pony, producing the same logo style for every brief.

Grammar

Countable; plural one-trick ponies. Keep the hyphen in one-trick; often used after be with people or things.

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