one-track mind

Main Entry:  one-track mind
Part of Speech:  n
Definition:  a focus on one issue or topic, to the exclusion of all else; an obsession with one thing
Example:  She just has a one-track mind, wanting to move on.
Etymology:  1938; fr. railways
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One-track mind is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Slang Dictionary

one-track mind definition


  1. n.
    a (person's) mind obsessed with only one thing. : When it comes to food, Tom has a one-track mind.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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American Heritage
Idioms & Phrases

one-track mind

A mind limited to only one line of thought or action, as in All you think about is sexyou 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.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Dictionary.com, LLC. Copyright © 2012. All rights reserved.
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