A person with an inflated sense of self importance who blindly follows societal trends often making them act with an inflated sense of self importance while being oblivious to how foolish they really are.

The phenomenon of having to come out as bisexual to the same person/people repeatedly because they assumed or hoped that your sexuality was a "phase." Refers less to the holiday and more to the 1993 Bill Murray comedy film in which the main character experiences the same day over and over.