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[flat-foo t or for 1, -foo t] /ˈflætˌfʊt or for 1, -ˈfʊt/
noun, plural flatfeet for 1, flatfoots for 2, 3.
  1. a condition in which the arch of the foot is flattened so that the entire sole rests upon the ground.
  2. Also, flat foot. a foot with such an arch.
Slang. a police officer; cop.
Older Slang. a sailor.
Origin of flatfoot
First recorded in 1865-70; flat1 + foot Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for flatfoot
Historical Examples
  • flatfoot is that condition in which the sole has little or no convexity.

    Special Report on Diseases of the Horse United States Department of Agriculture
  • It is bad shoeing that makes so many people suffer from flatfoot.

    The Girls of Central High Gertrude W. Morrison
  • The majority of so-called cases of flatfoot are, however, in the stage amenable to psychic measures.

    Outwitting Our Nerves Josephine A. Jackson and Helen M. Salisbury
  • flatfoot generally has weak walls, and as a consequence the nails of the shoe are readily loosened and the shoe cast.

    Special Report on Diseases of the Horse United States Department of Agriculture
  • Impressions of the feet are made in order to detect weakness of the arch or flatfoot.

    The Making of a Trade School Mary Schenck Woolman
  • He'd done nearly five blocks before a flatfoot steps out of a doorway and waves a nightstick at him.

    Torchy and Vee Sewell Ford
  • Before the benevolent physician could reach her, the flatfoot had taken her in tow, and both were rapidly leaving him.

  • The flatfoot, No. 3, approached within a short distance of the wreck, and a line was passed from her to the bow of the Chalmetta.

  • Out of twenty-four who thought they had rheumatism in the feet or legs eighteen proved to be cases of flatfoot.

    Psychotherapy James J. Walsh
  • There was no need to measure them particularly; all they needed was an ordinary set of flatfoot braces.

    Psychotherapy James J. Walsh
British Dictionary definitions for flatfoot


Also called splayfoot. a condition in which the entire sole of the foot is able to touch the ground because of flattening of the instep arch
(pl) -foots, -feet a slang word (usually derogatory) for a policeman
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
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flatfoot in Medicine

flatfoot flat·foot (flāt'fut')
n. pl. flat·feet (-fēt')
A condition in which the arch of the foot is abnormally flattened down so that the entire sole makes contact with the ground. Also called splayfoot, talipes planus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Slang definitions & phrases for flatfoot



A police officer or detective: The flat-feet scratched their heads (1899+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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