病从口入 bìngcóngkǒurù dietary hygiene Definitions Defs Origin Strokes Stroke Words Sentences Sents 病从口入,祸从口出 bìngcóngkǒurù, huòcóngkǒuchū loose tongue Illness enters by the mouth, trouble comes out by the mouth; a warning to be cautious with what one eats and says.