one-trick pony

noun

1. informal,  a person or thing considered as being limited to only one single talent, capability, quality, etc

Example Sentences

"You don't want to be a one-trick pony, certainly if you want to be successful."

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“He’s not just a one-trick pony, down-the-field guy — he’s really impressed me,” Roman said.

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Farrell had what he called his “crutch” — the physical transmogrification — which also sparked a germ of fear in him, of “being a one-trick pony,” he said.

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But such a blindside can be executed only once, and so what had been emotionally affecting about “The Sixth Sense” swiftly became a gimmick — or, in the case of Shyamalan’s much-derided 2004 film “The Village,” validation for those who thought the director was a one-trick pony.

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Hulst calls the A330-900 “a one-trick pony,” that an airline will buy only if it precisely fits its route needs.

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