Knockers- Women’s Breasts
Tommy knocker (folklore)
A mythical creature, like a brownie or leprechaun, believed to live in underground tunnels; later associated with dead miners.
Knocked up–Being with child, pregnant
Knocked down-to strike to the ground with or as if with a sharp blow: fell. 2: to dispose of (an item) to a bidder at an auction sale. 3: to take apart: disassemble.
Knock-off-a copy that sells for less than the original broadly : a copy or imitation of someone or something popular. To stop doing something. To do something hurriedly or routinely. To kill or rob.
Knock around or about-Travel without a specific purpose. Happened to be present. Spend time with somebody.