Plurthday 

January 29

Started in the year 1990, Plurthday is a time to celebrate the wonders of plur. Friends come together and partake in the traditional Four Loko celebration in which all participants take turns throwing up on ferrets.
Angry light-shows begin at around midnight and by 4:00 am people are so drunk that they climb into their closets and yell at their little brothers because they're "trying to sleep."

Plurthday is sometimes mistaken for it's year round counterpart, the "Ferret Rager".

-niggah, what are you doing friday night?

-ey mangg!!! friday is Plurthday. im getting some 4lokos and a couple ferrets. come see whats up.

Plurthday by plurbabyturner January 29, 2010

pirthday

When someone’s birthday falls on the most important date of the math calendar—when the most number of pies and pizzas are unprovenly being ordered on a single day by math educators and mathematicians worldwide to celebrate the number π.

What is the probability that a pirthday baby would also be experiencing their last day on earth on Pi Day?

pirthday by MathPlus November 4, 2021

pirthday

Birthday during a pandemic spent in quarantine.

Spent my pirthday alone social distancing.

pirthday by Phantomlover April 3, 2020

Blurthday 

When you party so hard on your birthday it is one big blur.

From what i remember it was a great blurthday!

Blurthday by say wha? January 12, 2014

Blurthday 

A blurthday is what you wish someone that will not shut up about their birthday.

Happy Blurthday fag!

Blurthday by JKKAxE July 10, 2010