Definition of jarhead in English:

jarhead

noun

US
informal, military slang
  • A US Marine.

    • ‘After all, how could some jarhead Marine know more about any subject than the Washington Post?’
    • ‘The entire manner in which the heavily criticized Patriot Act was passed into law is enough to give even the most jingoistic jarhead reason to pause.’

Pronunciation:

jarhead

/ˈjärˌhed/