Phrase from the KAPLAN listening

[Hippo]

Hi,

In one of the dialogs the student says:

"Physics fits me to a T."

What does "T." refer to?

Best regards,
Hippo

[Erin]

"to a T" is an idiom that means "perfectly." And "t" stands for "tittle," a word that means "small part," but is not in common use in SAE.

[Hippo]

Thank you Erin, very much!