When you wake up after sleeping with your hair pinned against its natural direction of growth. The result being that the area of scalp where the hair shaft connects ranges from sore to moderately painful, lasting up to a couple of hours after waking. A secondary result is an unkempt appearance to the hair, which no amount of hand-licking and spit-slathering will fix.

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.