When you try to think of something good (usually to type as a comment) but the only good thing you can think of has already been used, so you try to think of something original.

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.