daffy(redirected from daffiest)
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Crazy, goofy, or giddy. Quit being a so daffy—you're starting to annoy me. There's a guy on our corner who shouts about the end of the world; I think he's a little daffy.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
mod. silly; crazy. Kelly was acting daffy because she was so happy.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.