Jarhead. Noun. Slang for Marine. Origin: from the resemblance to a jar of the regulation high and tight haircut. The Marine's head by implication, therefore, also a jar. An empty vessel.
That jarhead got himself blown up during his tour in Iraq.
by Sassygirl91 July 31, 2011
Term used by US Marines, meaning Marine
"'ey Jarhead."
"Hey."
by Suzy Martin June 18, 2004
That guy that sit's like two seats over from you in class with the giant forehead.
Spencer: Hey Jarhead!
Jarhead: Stop calling me that >=(
Spencer: =P
by Paool September 17, 2014
Jarhead is a derogative term for US Marines based on the popular/common perception that they only follow orders and are incapable of individual thought as it is trained out of them in USMC basic.
Jarheads don't have to think. They only have to follow orders.
by Loki124 August 18, 2008
1. A member of the United States Marine Corps
2. Great book, terrible movie
1. Don't call a Marine a "jarhead" if you are not a Marine yourself.
2. Man, Anthony Swofford's "Jarhead" is such a great book, too bad the movie sucked big, hairy balls.
by jay-x April 29, 2008
a person serving in the United States Marine corps
That guy who cussed you out must have been a jarhead.
by Light Joker January 15, 2007
To pin a girl against a wall supporting her with your cock while holding her thighs to maintain a stable and powerful thrust
I said I was studying with my girlfriend but I was actually jarheading the shit out of her

Man I heard jag was sloppily jarheading this bitch last night and she snapped his dick clean off
by Jagur Mcnish December 16, 2010

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