Baked Potato

Alright, listen up, buttercup. This joke is playing on words, see? Someone who is "high" is usually someone on drugs, and a "baked potato" is a potato that's been, well, baked! And since you're not the sharpest tool in the shed, I'll explain that a wheelchair is a chair with wheels for people who can't walk good. Get it now? Good. Now go back to eating your boogers.