Examples of knucklehead in a Sentence
Don't be such a knucklehead.
I'd like to get my hands on the knucklehead who designed that paper-towel dispenser.
First Known Use of knucklehead
KNUCKLEHEAD Defined for English Language Learners
Definition of knucklehead for English Language Learners
: a stupid person
Seen and Heard
What made you want to look up knucklehead? Please tell us where you read or heard it (including the quote, if possible).