くちわる 口が悪い Show inflections LinksSentence search for 口が悪いSentence search for くちがわるいSentence search for 口がわるいKanji details for 口 and 悪Edit in JMdict Expressions (phrases, clauses, etc.), I-adjective (keiyoushi)1. sarcastic; having a sharp tongue; having a sharp nasty tongueSee also 口の悪いOther forms口がわるい 【くちがわるい】 Discussions Log in to talk about this word.