Top Definition
Someone who is acting very selfish or self important on their birthday, because it is their birthday.
Trevor is being a Birthday Asshole because he will not let anyone else select a song to listen to, because it is "his birthday".
by brands0220 February 19, 2014
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.

×