Dr. Nicky describes Joe's fake relationship as being "Ross and Rachel", a reference to Friends. John Stamos, who plays Dr. Nicky, guest starred on Friends in season 10.
In the recurring scene where Joe and Beck are reading, he is reading David Mitchell's Black Swan Green and she is reading Zadie Smith's On Beauty.
The title refers to Joe and Beck's penchant for playing Scrabble with words that don't actually exist - 'everythingship' being one of them.
Joe and Beck split up in this episode.