(noun.) a device (usually metal and ornamental) attached by a hinge to a door.
(noun.) a person who knocks (as seeking to gain admittance); 'open the door and see who the knocker is'.
(noun.) (Yiddish) a big shot who knows it and acts that way; a boastful immoderate person.
录入:费尔普斯
校对:马里恩