地沟油 dìgōuyóu gutter oil Definitions Defs Origin Strokes Stroke Words Sentences Sents 地沟 地溝 dìgōu drainage ditch underground ditch used for irrigation or for draining sewage and rainwater; sewer油 yóu noun oil oil; fat; grease; any of various liquid fats or hydrocarbons used as food, fuel, or lubricants