流俗 liúsú prevalent customs Origin Definitions Defs Strokes Stroke Words Sentences Sents liúsú prevalent customs · vulgar people 流 liú verb to spread to circulate, spread, or pass down; to become widely known俗 sú noun custom (bound form) a social custom, convention, or habitliúsú to be vulgar 流 liú verb to degenerate to drift or turn toward a negative direction or state俗 sú vulgar (bound form) coarse; tasteless; tacky; unrefined or mediocre