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
Marganita	-	Hebrew
Maren	MAH-ren (Danish)	Danish, Norwegian
Myeong-Suk	myung-sook	Korean
Ophiuchus	-	Astronomy
Beso	-	Georgian
Chadwick	CHAD-wik	English