know (something) inside and out

To be well-versed in and/or very familiar with something. I'm ready for this exam—I know genetics inside and out! I think Mary will do great at the audition, now that she knows the dance inside and out. These cabbies know the city streets inside and out.

Common Names:

Name	Pronounced	Usage
Cinderella	[.sində'relə]
Sorley	SAWR-lee	Scottish, Irish
Eberhard	E-ber-hahrt (German)	German, Ancient Germanic
Malai	-	Thai
Alden	['ɔ:ldən]
DeÒRsa	-	Scottish