The period from about December 20th - January 5th in which a person's birthday may fall and they get a "Christmas/Birthday Present". I.E. They get one present for their birthday and Christmas instead of two due to their birthday falling so close to the holiday.
I got screwed again on presents this year...my mom decided to get me a birthmas present to make her holiday shopping easier and cheaper.
by Michelle Davies December 28, 2008
I was born on 12/23 and never get separate birthday and x-mas gifts. I always get some lame birthmas gift.
by BuddhaBrother June 27, 2005
by Alcabum November 15, 2009
buy the domain for your diy site
When a family is poor and can't afford presents for birthday and Christmas so they get them one present for both.
by Collkid69690 December 23, 2014
Merry birthmas to me!
by daymare June 11, 2005