Definition of jarhead in English:

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US informal
A marine.
Example sentences
  • A lot is made in many movies of the physical training and the technical training that they experience in boot camp but I really think boot camp is to turn you into a jarhead.
  • I know what I meant, jarhead, I don't need the likes of you questioning my command of the language.


Early 20th century (originally US dialect, in the sense 'mule'): from jar1 + head. The word originally referred to members of the US army, on account of the mule mascot of the Army football teams.

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