be a (something) to (one's) fingertips

To be a particular thing to the utmost degree. Oh, I'm a student to my fingertips—that's why I'm now pursuing a doctorate.

Name	Pronounced	Usage
JoËLle	zho-EL	French
Kaui	-	Hawaiian
Anargyros	-	Greek
Tomoko	to-mo-ko	Japanese
Anto	-	Croatian, Serbian
Joukahainen	-	Finnish Mythology