臍を噛む ほぞをかむ Also written ほぞを噛む, 臍を噬む Meanings Expression, Godan verb to regret bitterly; to be very sorry (for) (literally: to bite one's navel) Kanji 臍 navel. Read as ほぞ. 噛 bite. Read as かむ. Word lists Idioms Jinuma: Japanese Dictionary · Word lists