have down to a T

have (something) down to a T

To do something well or efficiently, typically due to one's experience at it. I'm a working mom of three, so I've got lunch-making down to a T—I put out all the pieces of bread, add jelly to each one, and then do the same with peanut butter.
See also: down, have
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

have something down to a T

Fig. to have something mastered. I can do it. I have it down to a T.
See also: down, have
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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