One who is regarded as stupid, boorish, or bumbling. Leave it to that clunkhead to screw up the whole presentation in the first five minutes! Why on earth would they promote that clunkhead to be the regional manager.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
n. an oaf; a stupid dolt. My brother can be such a clunkhead! Can’t do nothing right!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.