know (something) off pat(redirected from know off pat)
know (something) off pat
To learn, master, or understand something perfectly, to the point of requiring little or no focus to do, recall, or accomplish it. I know it's a little tricky getting the hang of the machine, but keep at it, and you'll know it off pat in no time. My sister is such a musical prodigy that she can know a song off pat after listening to it only once or twice.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have/know/get something off ˈpat(British English) (American English have/know something down ˈpat) know or have learned something so well that you can repeat it at any time: I’m afraid I haven’t got the answer off pat. ♢ She has all our names and cellphone numbers down pat.
Farlex Partner Idioms Dictionary © Farlex 2017