(as) black as Newgate's knocker

dated Completely black; totally without light or color. Refers to the black iron knocker on the door of Newgate Prison in London. Primarily heard in UK. The basement gives me the creeps, it's as black as Newgate's knocker down there!

Common Names:

Name	Pronounced	Usage
Zhubin	-	Persian
Joseph	JO-səf (English), zho-ZEF (French), YO-zef (German)	English, French, German, Biblical
Aniya	-	English (Modern)
Ableson	['eiblsn]
Engel	-	German (Rare), Ancient Germanic
Thulile	-	Southern African, Zulu