one-track mind
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.
Words Nearby one-track mind
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use one-track mind in a sentence
Once his one-track mind got to functioning on a certain objective it seldom digressed.
"Thank God that thing had a one-track mind, and was concentrating on the spider," said Jim, with a rather humorless laugh.
The Raid on the Termites | Paul ErnstYou certainly see the other side of the famous one-track mind of Japan over here, as well as of other things.
Letters from China and Japan | John Dewey
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