油垢 Traditional form: 油垢 Pinyin (reading): yóugòu Definitions: greasy dirt Characters: 油 - oil, fat, grease, lard; oil paints 垢 - dirt, filth, stains; dirty; disgraceful Traditional characters: 油 - oil, fat, grease, lard; oil paints 垢 - dirt, filth, stains; dirty; disgraceful