Vocabulary
臍を噛む
ほぞをかむ
to regret bitterly; to be very sorry (for); to bite one's navel
expression
verb
Example sentences
彼女（かのじょ）は姑（しゅうとめ）の気（き）にさわるようなことを言（い）わなければよかったと臍（へそ）を噛（か）んだ。
She bitterly regretted having said something that displeased her mother-in-law.