have something off patBritish EnglishBrE, have something down pat American EnglishKNOW something to know something thoroughly so that you can say it, perform it etc immediately without thinking about it 对某事滚瓜烂熟,对某事熟悉得可随口说出[随即表演等] SYN (off) by hearthave something off pat• She only had to repeat the lines once or twice, and she'd have them down pat.• Like most politicians he had all his answers off pat, but he didn't have anything particularly new or interesting to say.
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