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
Sujay	-	Bengali, Indian, Marathi
Fitzgerald	[fits'dʒerəld]
Revazi	-	Georgian
Thorborg	-	Swedish
Etsuko	e-tsoo-ko	Japanese
IÑAki	-	Basque