little green man🔊

(science fiction) A conventional fictional alien from outer space in the form of a small humanoid with green skin.

(humorous) One of the supposed extraterrestrial occupants of a UFO.

(folklore) A type of diminutive sprite or fairy that wears green clothing.

(in the plural) A soldier (wearing green military fatigues) without identification in order to create an air of uncertainty around their allegiance.