Easy as in dunce A person characterized by foolish or silly behavior, similar to a blockhead. Clear All
4 Example Sentences Showcasing the Meaning of 'Knucklehead'
The teacher scolded the knucklehead for disrupting the class with his constant jokes and pranks.
Grandma affectionately called her mischievous grandson a knucklehead whenever he played practical jokes on his siblings.
The history teacher struggled to maintain order in the classroom as the knucklehead students engaged in a paper ball fight.
Jenny sighed, realizing her brother was a true knucklehead after he left the refrigerator open all night.
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