little green man
(Q2630558) (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 pixie (sprite or fairy) that wears green clothing.
(Q16034018 or similar) (in the plural) A soldier (wearing green military fatigues) without identification in order to create an air of uncertainty around their allegiance.
(Q16034018) (specifically) Such an unmarked soldier of pro-Russian allegiance in Ukraine in the 2010s and 2020s.
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