A member of the United States Marine Corps. When used by civilians it could be considered derogatory, but it is used often among Marines.

The term originates from the "high and tight" haircut that many Marines have, which makes their head look like a jar. It did NOT originate from their uniform or cover.

The term "jarhead" comes from the shape of the Old Corps covers (hats) that were worn by Marines. The poster is assuming that it is derrogatory, but in fact Marines call each other jarhead as a matter of course.

A word used by both ordinary people and marines to talk about marines. The term jarhead came out because of the very short hair cuts which resembles that of a jar.

jar-head (n) a member of the United States Marine Corps..... OOooraaAAHH!!

Term used by US Marines, meaning Marine

1. A member of the United States Marine Corps
2. Great book, terrible movie

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.