Get it? (screenshot via Late Night)

Way back in the roaring '90s, Conan O'Brien hosted Late Night and it seemed like they could get away with anything (Triumph the Insult Comic Dog, the Masturbating Bear, the Walker Texas Ranger lever, etc.). Even so, Louis CK (who wrote for Late Night then) told Seth Meyers (who hosts Late Night now) that he was constantly fighting to get filthy jokes past the censors. CK and fellow writer Dino "Starburns" Stamatopoulos finally figured out a workaround—writing the short jokes the announcer says just before introducing Conan. He managed to get a "pearl necklace" reference in, but it didn't work as planned because the audience wasn't nearly as gutter-minded as the ones writing for them. Not much has changed, because most of Meyers' audience didn't get it either:

Sources: Vulture