Geekdom is much like any other group of people. There are movies, music, and literature which are considered classics and are generally accepted as having been seen, heard, or read by everyone at one point or another. Some of these are so accepted as classics that the idea someone is unfamiliar with them is simply "inconceivable" and we are left shocked when this occurs. Unfortunately, one of our own staff seems uninitiated in such classics.
While discussing some of the quests coming up in patch 3.3, we'd made a joke referencing the Knights who say "Ni!" from Monty Python's Holy Grail. Our own Matt Low mentioned that he didn't get whatever inside joke we were making. Much to our dismay, he had never seen the movie or any Monty Python for that matter. Strange women lying in ponds distributing swords for daily quests wouldn't get a chuckle from him. Terry Palin in Elwynn Forest quoting the lumberjack song is also lost on him. He wouldn't even be that concerned about eating the Crunchy Frog available from Darkmoon Faire because he wouldn't know that it contained crunchy, raw, unboned, real, dead frog instead of an almond whirl.
With the vast number of pop culture references scattered in World of Warcraft, it's sad when any are lost on its players. What obscure references have you found in the game that you've enjoyed or other people have completely missed?