one-track mind

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Idioms and Phrases

A mind limited to only one line of thought or action, as in All you think about is sex—you have a one-track mind . This expression, alluding to a train that runs only on one track or in one direction, was first recorded in 1928.

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Example Sentences

Once his one-track mind got to functioning on a certain objective it seldom digressed.

From Project Gutenberg

"Thank God that thing had a one-track mind, and was concentrating on the spider," said Jim, with a rather humorless laugh.

From Project Gutenberg

You certainly see the other side of the famous one-track mind of Japan over here, as well as of other things.

From Project Gutenberg

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

one-track one-trick pony

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