Down pat

[Kit]

at [the point] of having [something] memorized or [perfected].

[Guest]

What the heck is wrong with saying “I got this” or “you did an amazing job there... come on guys are we all that lazy....

[Jacobanade]

understood perfectly

[Richarddok]

Thoroughly practiced, rehearsed, or understood.

[argey]

Down pat is an idiomatic phrase originating from English speaking countries which means to have something completely mastered or learned perfectly, often referring to a skill, technique, or piece of information. It often implies that someone can perform a task confidently and effortlessly, without making mistakes, usually as a result of repetition or practice.