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fifth-wheel trailer

[fifth-hweel, -weel or, often, fith-] /ˈfɪfθˌʰwil, -ˌwil or, often, ˈfɪθ-/
noun
1.
See under fifth wheel (def 3).

fifth wheel

noun
1.
a horizontal ring or segment of a ring, consisting of two bands that slide on each other, placed above the front axle of a carriage and designed to support the forepart of the body while allowing it to turn freely in a horizontal plane.
2.
a similar device used as a coupling to connect a semitrailer to a tractor.
3.
a similar coupling between a heavy-duty pickup truck and a camping trailer (fifth-wheel trailer) that extends over the bed of the truck.
4.
an extra wheel for a four-wheeled vehicle.
5.
a superfluous, unneeded, or unwanted person or thing:
They enjoy making any outsider feel like a fifth wheel.
Origin
1870-1875
1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for fifth wheel trailer

fifth wheel

noun
1.
a spare wheel for a four-wheeled vehicle
2.
  1. the coupling table of an articulated vehicle
  2. a steering bearing that enables the front axle of a horse-drawn vehicle to rotate relative to the body
3.
a superfluous or unnecessary person or thing
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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fifth wheel trailer in Culture

fifth wheel definition


A hanger-on; a person who serves no function: “The vice president felt like a fifth wheel after his exclusion from the committee.”

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang definitions & phrases for fifth wheel trailer

fifth wheel

noun phrase

A superfluous person or thing: I feel as though I'm a fifth wheel

[1902+; the date reflects the full form fifth wheel of the coach]


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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Idioms and Phrases with fifth wheel trailer

fifth wheel

An extra and unnecessary person or thing, as in He was the only one without a date, so he felt like a fifth wheel. This expression, which alludes to an unneeded wheel on a four-wheel vehicle, may have originated as long ago as 1631, when Thomas Dekker wrote Match Me in London: “Thou tiest but wings to a swift gray Hounds heel, And addest to a running Chariot a fifth wheel.”
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Difficulty index for fifth-wheel trailer

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Word Value for fifth

14
13
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