Season 4, Episode 13: "The Pick"

It's a little brown, circular protuberance.

What's the big deal?

Everybody's got them. Look, I got them.

-I got them too. -Look at this.

Everybody's got them.

See, it's kind of gotta little piece of cloth that's stuck underneath and--

Well, can you pull it up a bit?

Well, here you hold it. Wait, hold it. Hold it.