The word found after unscrambling knocker means that (Yiddish) a big shot who knows it and acts that way; a boastful immoderate person, a person who knocks (as seeking to gain admittance), one who disparages or belittles the worth of something, either of two soft fleshy milk-secreting glandular organs on the chest of a woman, a device (usually metal and ornamental) attached by a hinge to a door, .