Apaches on Your Eye

Listen here, you knucklehead! You clearly don't know what's up. This here is a classic knock-knock. It plays on how 'Apaches' sounds like 'a patch is'. It's all wordplay, you see? The answer sets up a pun, like they are going to put a patch on your eye. It's supposed to be silly. Get it now? Dumb-dumb.