The scene where the Nanobots are trying to get into Jimmy's lab is taken from an early Saturday Night Live skit. In the skit, a landshark tries to get into people's apartments, first by telling them they have a telegram, like the Nanobots did. Carl, like the apartment owners, didn't believe this. Next, the landshark called, "Candygram!" This worked. For Carl, the Nanobots called "Llamagram?" Of course, this worked on Carl.