noun
- stupid or foolish people
Usage: informal; plural of knucklehead
Examples
- Those knuckleheads forgot to lock the door again.
- The coach called his players knuckleheads after they made the same mistake twice.
- Don’t be such knuckleheads – read the instructions first.
- The knuckleheads in accounting mixed up the invoices.
- My brothers are complete knuckleheads when it comes to cooking.
- The teacher had to deal with a classroom full of knuckleheads.