|1.||to a T|
"to a T" means right this way, exactly or precisely so.
it's not certain exactely what the T stands for but rather cautiously, I can belive T being the first letter of a word.
The most likely source, most expert say. can be tittle.
In my opinion can also be Total.
(Nicky Santoro): "I would carry things out to a T".
"I will quote this to a T."
"This is total BS! to a T!"