2 definitions by Alilrebelchick

A term describing a Birthday/Christmas gift for someone who was born on Christmas Day when someone gives them one gift to serve as gift for both occasions. Usually a cheap way to get out of having to buy two separate gifts.
"I get ripped off every year! I always get a Birthmas present instead of Christmas and Birthday presents since I was born on Christmas day!"
by Alilrebelchick February 23, 2010
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When your birthday falls on or near your anniversary and you only get one gift for both occasions.
We were married on my birthday, so I always get a birthaversary present instead of two!
by Alilrebelchick February 23, 2010
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