Last night Jon Stewart brought it home. He nailed it for me last night. I laughed until I cried. It was so subtle. Did you catch it?
Paul Rudd, "I have a feeling that in the entire history of Comedy Central I’m the first person that’s ever said ‘pump out a Rene Auberjonois‘"
Jon Stewart, "There’s actually uh Carlos Mencia does it as a recurring bit."
Paul Rudd, "I knew I’d heard it before!"
So why’s it so funny? Read this exceptional article, Take the Funny and Run in full to really understand the joke. For those that don’t want to click over, here’s the brief:
Rogan, who refers to Mencia as "Carlos Menstealia," claims it’s common knowledge among his fellow funny men that Mencia takes bits from other comics and performs them as his own. [Source]
Anyone who has ever performed stand-up is familiar with the red light, the universal signal that warns dawdlers it’s time to wrap things up. In the ’80s, comics at the Hollywood Improv came up with a novel use for the light. When shining steadily, it had the conventional meaning. But if the bulb began sputtering, it was the comedic equivalent of an air-raid siren, warning performers to lock up their original material immediately unless they wanted to lose it to a master thief.
Robin Williams, comedy’s most notorious joke rustler, was in the house.
…the famed Comedy Store in Los Angeles has even instituted a Mencia early-detection signal similar to the Improv’s for Williams, though considerably less high-tech. "Every time he walks in, the guys in the cover booth just start yelling ‘Mencia’s here!’"
[Source]