1 definition by Donald Skirvin

Top Definition
The Slang term came about during WW2 as a slang term for a US Marine.
During the war some steel helmets were made by the Mason jar company.
Some Marines who were issues helmets made by Mason Jar co. were called Jar heads
#jarhead. #us marines #ww2 #mason company #war in the pacific
by Donald Skirvin May 02, 2007
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