Meaning & Story
From the English compound 'knucklehead,' an informal term for a silly, stubborn, or foolish person — used affectionately to describe someone who makes lovable mistakes.
Knucklehead is the name you give to the dog who has eaten the remote control, gotten his head stuck in the railing, and managed to fall into a bush he was trying to jump over — and yet you love him absolutely. It's an affectionate insult, the kind families use when a pet is so endearingly ridiculous that admiration and exasperation become the same feeling. Owners who embrace their dog's spectacular dunderheadedness will find this name captures him perfectly.