what's what

(spoken)

the information about a person or situation You finally met her boyfriend, so now you know what's what. He's been in this business for a long time and really understands what's what. It will be hard for investors to tell what's what in the current stock-market crisis.

what's what

Informal

The fundamentals and details of a situation or process; the true state or condition.

Common Names:

Name	Pronounced	Usage
Zerach	-	Biblical Hebrew
Gaea	-	Greek Mythology (Latinized)
Corbin	KAWR-bin	English
Tyriq	tie-REEK	African American (Modern)
SalİH	-	Turkish
Yordana	-	Bulgarian