くちをぬぐう

口 を 拭 う

  1. expressions (phrases, clauses, etc.), Godan verb with 'u' ending

    to feign innocence, to feign ignorance
    from wiping one's mouth and feigning innocence after sneaking a bite of food
    idiomatic expression

  2. expressions (phrases, clauses, etc.), Godan verb with 'u' ending

    to wipe one's mouth