One who is apt to behave in a stupid, silly, or scatterbrained manner. Did I really forget my wallet at home? I can be such a ditz sometimes. Oh, she's a ditz all right—she just said that two plus two is seven.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
ditzand ditzo (dɪts(o))
n. a giddy, absent-minded person. I’m getting to be such a ditz! What a ditzo!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.