A number 1

A-number-1

Of the very highest caliber, standard, or quality. That was performance last night was positively A-number-1! I really think you'll like that movie—we thought it was A-number-1. This sure is an A-number-1 cake, Beth. I'll have to get the recipe from you.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

A number 1

verb
See A-1
See also: number
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
See also: