绿帽 lǜmào cuckold Definitions Defs Origin Strokes Stroke Words Sentences Sents 绿 綠 lǜ to cheat on (slang) to be unfaithful to a romantic partner, derived from the phrase 绿帽子 lǜmàozi帽 mào noun hat hat; cap; headgear worn for protection, warmth, or decoration