Definitions by Urbanarly

Birfday 

A day of celebration of one's birth. Invented by a child, used by adults because it is just better to be birfed than birthed.
Because, it's your birfday and you can say it anyway you want too.

Yo' Happy Birfday, man.
Go girl, it's your Birfday!

Birfday by Urbanarly June 1, 2014