a knocking shop

(British very informal) also a knock-shop (Australian very informal)

a place where men pay to have sex with women People say it's a knocking shop but I've never seen anything going on.

Name	Pronounced	Usage
Magnhildr	-	Ancient Scandinavian
Maud	MAWD (English)	English, Dutch
Jun	joon (Korean)	Chinese, Korean
Camillus	kə-MIL-əs (English)	Ancient Roman
Ozias	-	Biblical Latin, Biblical Greek
Kasper	KAHS-per (Polish, Swedish), KAHS-pər (Dutch)	Polish, Dutch, Swedish, Norwegian, Danish