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Region: General | Usage example: The app is a one-trick pony that only handles invoicing.

One-trick pony

Meaning

Someone or something with only one skill or feature.

Usage

Used critically when someone lacks versatility.

Origin & History

Origin notes can vary by region and source; this page gives the commonly reported explanation and usage context.

Circus pony trained only for a single trick.

Used in the 19th century to describe performers and extended to business.