on the knocker การใช้

• "I plan to get somewhere right on the knocker, " she added, the slang of her native Australia poking through.
• He has written plays for stage, radio and television, including " Mister Lowry " staged by the Bristol Old Vic and " On the Knocker ", a play for radio and winner of an LBC Radio Drama Award.
• It would be Marley's ghost who would be Scrooge's first visitor ( before the three other spirits to come ); Marley preys upon Scrooge's mind in many different ways, notably his face manifesting on the knocker on Ebenezer Scrooge's front door and causing the bells in his house to ring.