- GI Joe is a slang name for someone who was or is in the military.
An example of GI Joe is what you might call your cousin who is in the Army.
GI Joe on the battlefield.
GI Joe definition by Webster's New World
Origin: G.I., origin, originally abbreviation, abbreviated ; from g(alvanized) i(ron), interpreted as g(overnment) i(ssue) plush Joe
GI Joe - Cultural Definition
A nickname for United States soldiers, particularly during World War II. GI is short for government issue, a descriptive term for supplies distributed by the government.