Unbirthday

Any day that isn't technically your date of birth.
Refers to Louis Carroll's Alice in Wonderland, where there Mad Hatter and his crew celebrate such a day.
Can also be utilized for no damn reason except to celebrate..

Today is my Unbirthday, three and one.

by REBel Siren January 2, 2023

Unibirth

Being born on the same day as the number of your birth month.

For example:

12/12/91 or 5/5/91

Hey I have a unibirth ! I was born on 12/12/1991. How about you?

I am a unibirth too! I was born on 5/5/91

by Uno125 December 19, 2017