The riff: Spoken in an oddly Canadian-sounding accent by Crow as a crew of rocket pilots attempt to navigate somewhere in the vicinity of the moon.
The explanation: This is definitely a geeky riff, at least in the first part. “L2” is a reference to Earth’s “Lagrangian points,” which are essentially areas of the planet’s orbit where a small object can stay up and orbiting indefinitely, caught in stasis between the gravitational effects of the three relevant bodies: the earth, the moon and the sun. Because of this, important space stations and equipment have been stationed in these areas. The second half of the riff, though, is totally different. I could be wrong, but I think it’s a reference to an old Cheech and Chong bit called “Dave’s not here,” which plays like a much stupider version of “Who’s on first?”
Novelty factor: Let’s just say I learned a lot in the course of looking this one up.