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
Wasim	-	Arabic
Deusdedit	-	Late Roman
Keshaun	-	African American (Modern)
Gray	GRAY	English
NaİLe	-	Turkish
JÓZef	YUW-zef	Polish