You're so dumb...
- Spent a decade on the leading edge of drug experimentation.
- Still boots to DOS.
- Still sending messages with his secret decoder ring.
- Still traumatized from the forest fire in "Bambi".
- Stuck on the down escalator of life.
- Stumped by anything child-proof.
- Subtle as a well-thrown brick.
- Suffers from Clue Deficit Disorder.
- Surfing in Nebraska.
- Switch is on, but no one's receiving.
- Takes 1.5 hours to watch "60 Minutes".
- Takes an hour to cook minute rice.