Happy Un-birthday!

Today’s challenge at Mindlovemisery’s Menagerie is to write about our un-birthday.

Happy un-birthday to me!
I hear it’s your un-birthday too.
What’s your un-celebration
going to be?
Perhaps you can un-celebrate
with me!
An un-cola and an un-cake
(perhaps a slice of pie);
lounging in our un-derwear.
Oops! ┬áThat’s un-usual
and un-necessarily un-formal.
Whatever we un-choose to do,
it shall last all
the un-year long!
But excuse me if you will,
I must begin the un-celebration
of my un-birthday!