くちすべ 口が滑る Show inflections LinksSentence search for 口が滑るSentence search for くちがすべるSentence search for 口がすべるKanji details for 口 and 滑Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to make a slip of the tongue; to let something slipIdiomatic expressionOther forms口がすべる 【くちがすべる】 Discussions Log in to talk about this word.