Top Definition
A combination of Birthday and YAY!, typically to indicate excitement about a birthday; a portmanteau of "Birthday" and "YAY".

See "FriYAY" for reference.
Karen - "Woo hoo! It's my BirthYAY weekend! We're going out!"

Ann Marie - "Weekend?! It's my BirthYAY Month! We're going out repeatedly!"
by AMarie0908 May 27, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×