Joan from McKinney, Texas, wonders about the origin of the disparaging term knucklehead. It’s a mild insult, and as with blockhead and bonehead, it suggests that someone’s head is so full of blocks, bones, or knuckles that there’s...
Joan from McKinney, Texas, wonders about the origin of the disparaging term knucklehead. It’s a mild insult, and as with blockhead and bonehead, it suggests that someone’s head is so full of blocks, bones, or knuckles that there’s...