to have something off down pat
01
to have a very good knowledge or understanding about something, to the point where one can do it with little or no thought or effort
Dialect
British
British
![to [have|know] {sth} off down pat definition and meaning](https://cdn.langeek.co/photo/44780/original/?type=jpeg "to [have|know] {sth} off down pat definition and meaning")
例
You must have that angle off down pat.
You've heard Jamie talk about the deal all week, so you should know the story off down pat.
