Birthiversary

Birthiversary is an anniversary of the day on which a person was born, typically treated as an occasion for celebration, along with the giving of cake and gifts.

Parades, entertainment and Sprinklefetti demand rises significantly around this holiday.

Being such, it functionally resembles a regular birthday. This version is celebrated with songs to the tune of "Happy Birthday", and the party includes gifts, cards, a cake, balloons, or a quote of passage. This is shown in some episodes.