dumbbell(redirected from a dumbell)
slang Someone who is stupid and/or clumsy. Can you believe that dumbbell is still pushing the door marked "pull"? Of course he broke the vase—that guy is such a dumbbell.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. a stupid oaf. (Also a rude term of address.) I’m afraid I come on like a dumbbell sometimes.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.