The date of the 22nd of February, 2022, also known as 22/2/2022 or 2/22/2022. This day just so happens to fall on a Tuesday, hence the pun. Not to be confused with Twosday.
On this day... well... I don't know - do what you want. I mean, what did you do on 11/11/2011?

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.

N. The other name for the second day of the week (assumeing you start from monday) Tuesday. Twosday is the day of the week where anything interesting happens. It may also be used as an excuse for doing things.
Twosday is a very flexiable word and is most used to discribe sexiual happenings. This is closely associated to the phrase "Only on Twosday"