Top Definition
A friend or acquaintance who shares a birthday with you; ideally the exact same birthdate, including year.
My friend Tamara and I are birthmates because we were born on the exact same day.
by deviant85 January 14, 2009
4 Words related to birthmate

Free Daily Email

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

Emails are sent from We'll never spam you.