"winking insider references" . "In-joke" . "private joke" . . "humorous" . "In-joke" . "in-jokes" . "in-house joke" . . "inside references" . "inside" . "reference" . "inside jokes" . "inside joke" . . "in-joke" . "inside reference" . "self-referential humor" . "hidden reference" . . "recurring joke" . . "esoteric joke" . "comments" .