Annoying Hairline

Alright, listen up, buttercup. This joke is for all you smooth brains out there who can't tell a roast from a toast. Basically, the person is saying you're as irritating as a messed-up hairline. You know, the kind that looks like a toddler attacked it with scissors. Now, since you probably have one of those, I'm sure you feel very attacked, don't you?