knocker
noun /ˈnɒkə(r)/
/ˈnɑːkər/
- enlarge image(also door knocker)[countable] a metal object attached to the outside of the door of a house, etc. that you hit against the door to attract attention
(固定在门上供敲门用的)门环 Topics Houses and homesc2 - [countable] (informal) a person who is always criticizing somebody/something
吹毛求疵的人;一味批评的人 - knockers[plural] (taboo, slang) an offensive word for a woman’s breasts
(冒犯语)乳房,奶子