If you knew anything about us at all you'd realize that it's an insult to compare something like me with aristocratic blood to some cave dweller.

[Since she doesn't know any better, he'll let it pass. For now. As one of those silly human things he was certain she didn't know much about troll customs. But it was Karkat's stuff to inform the humans of that stuff, so Eridan won't bother, he had better things to do. And even if he dresses like a cross between a hipster and a super villain his wardrobe style is still awesome.]