[There's a childish game that young monsters and humans on television like to play when they're stubbornly copying everything someone else is saying in an effort to be annoying.

Mettaton likes to think that, as a gifted actor with a skill for imitation, he's one upping every single one of them.

Thus.]

"Okay, I do not talk like that." Pshaw. Fo real? Fo real? You don't talk like this? Like Carlton Banks trying to start a rap career?

... [Okay, pause.]

...that's not a bad character description. I should write that down.