know onions

know your onions

(British & Australian humorous)

to know a lot about a particular subject That car salesman certainly knew his onions, didn't he?

Name	Pronounced	Usage
Vlasiy	-	Russian
Abdiou	-	Biblical Greek
Ballesteros	[bælə'steərɔs]
Reyhan	-	Turkish, Uyghur
Wilburn	WIL-bərn	English
Melchol	-	Biblical Greek