NOUN
* the state of being seriously mentally ill; madness. "he suffered from bouts of InHannity
* “He attempted to plead InHannity" synonyms: mental illness, mental disorder, mental derangement, madness, insaneness, dementia, lunacy, delirim, craziness, deliration, psychosis, instability

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.