one-trick pony

British

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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See Examples For:

one-trick pony

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

From Los Angeles Times ● Aug. 9, 2025

The vegetable, regarded as a fruit just as tomatoes are fruits commonly regarded as vegetables, isn’t a one-trick pony, either.

From Washington Times ● Jun. 6, 2023

I just want to keep surprising people that I’m not a one-trick pony.

From New York Times ● Mar. 9, 2023

"Hopefully it will still encourage people to come back and it's not just a one-trick pony."

From BBC ● Dec. 28, 2021

And I was pretty much a one-trick pony.

From "Simon vs. the Homo Sapiens Agenda" by Becky Albertalli

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023