
1) Alternative to a buzzer 2) Big cheese 3) Big deal 4) Big enchilada 5) Big fish 6) Big gun 7) Big shot 8) Big wheel 9) British slang for a breast 10) Cornish legendary creature 11) Door appurtenance 12) Door feature 13) Faultfinder 14) Fictional miner 15) Front door part 16) Head honcho 17) Welsh folklore
Found on
https://www.crosswordclues.com/clue/knocker

1) Backbiter 2) Boob 3) Complainer 4) Critic 5) Defamer 6) Depreciator 7) Detractor 8) Disparager 9) Doorknocker 10) Hatemonger 11) Libeler 12) Maligner 13) Mallet 14) Muckraker 15) Mudslinger 16) Slanderer 17) Tit 18) Titty 19) Traducer 20) Vilifier 21) Whiner
Found on
https://www.crosswordclues.com/clue/knocker
[folklore] Their name comes from the knocking on the mine walls that happens just before cave-ins – actually the creaking of earth and timbers before giving way. To some of the miners, the knockers were malevolent spirits and the knocking was the sound of them hammering at walls and supports to cause the cave-in. To others, who saw them a...
Found on
http://en.wikipedia.org/wiki/Knocker_(folklore)

• (n.) One who, or that which, knocks; specifically, an instrument, or kind of hammer, fastened to a door, to be used in seeking for admittance. • (n.) A person strikingly handsome, beautiful, or fine; one who wins admiration; a `stunner.` • (n.) A species of large cockroach, esp. Blabera gigantea, of semitropical America, which as a...
Found on
http://thinkexist.com/dictionary/meaning/knocker/
Knock'er noun One who, or that which, knocks; specifically, an instrument, or kind of hammer, fastened to a door, to be used in seeking for admittance. « Shut, shut the door, good John ! fatigued, I said; Tie up the
knocker ; say I'm sick, I'm dead.»
Pope. Found on
http://www.encyclo.co.uk/webster/K/15
Knock'er noun 1. A person strikingly handsome, beautiful, or fine; one who wins admiration; a 'stunner.' [ Slang.]
2. A species of large cockroach, esp.
Blabera gigantea , of semitropical America, which is able to produce a loud knocking sound.
Found on
http://www.encyclo.co.uk/webster/K/16

One who criticises.
Found on
http://www.faqs.org/faqs/australian-faq/part5/

Knocker is British slang for a debtor, someone who borrows money.
Found on
http://www.probertencyclopaedia.com/browse/ZK.HTM

[
n] - a person who knocks (as seeking to gain admittance) 2. [n] - a device (usually metal and ornamental) attached by a hinge to a door
Found on
http://www.webdictionary.co.uk/definition.php?query=knocker

One who criticises
Found on
https://mudcat.org/aussie/display_all.cfm

An assembly with a nylon-tipped plunger that hits a metal plate producing a distinct sound to announce specials and free games being won.
Found on
https://pinwiki.com/wiki/index.php?title=Glossary
doorknocker noun a device (usually metal and ornamental) attached by a hinge to a door
Found on
https://www.encyclo.co.uk/local/20974

a person or thing that knocks. · a hinged knob, bar, etc., on a door, for use in knocking. · a persistent and carping critic; faultfinder. · . a female breast. · canvassing or selling door-to-door.
Found on
https://www.infoplease.com/dictionary/knocker

somebody who criticises
Found on
https://www.koalanet.com.au/australian-slang.html
No exact match found.