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
Zoroaster	ZAWR-ə-as-tər (English)	History
Alstead	['ɔ:lsted]
Swift	[swift]
Niv	-	Hebrew
Bozhena	-	Medieval Slavic
Emile	[ei'mi:l]