learn (something) down pat(redirected from learn it down pat)
learn (something) down pat
To learn, master, or understand something perfectly, to the point of requiring little or no focus to do, recall, or accomplish it. I made sure to learn my speech down pat before the ceremony so I wouldn't spend the whole time looking down at piece of paper. My sister is such a musical prodigy that she can learn a song down pat after listening to it only once or twice.