fifth wheel meaning

  "fifth wheel" in a sentence
Noun: fifth wheel
  1. Someone or something that is unwanted and unneeded
    - deadwood 
  2. An extra car wheel and tire for a four-wheel vehicle
    - spare 
  3. A steering bearing that enables the front axle of a horse-drawn wagon to rotate

Derived forms: fifth wheels

Type of: bearing, car wheel, redundance, redundancy, superfluousness

Encyclopedia: Fifth wheel


[American slang]
n. an extra and unneeded person.
• I feel like such a fifth wheel around here.
• Hank is just a fifth wheel. Send him home.

Examples

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  1. semi-trailer tractors-fifth wheel mounting
  2. road vehicles-fifth wheel kingpins-strength test
  3. road vehicles-fifth wheels-interchangeability
  4. motor vehicles-fifth wheel coupling pins-strength test
  5. fifth wheel lead for calculation of length

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