The one day you want to put a gun in your mouth and everyone comes over to celebrate.
When you become old you're family will start talking about your funeral in front of you on this day. God Damnit! It's my birthday!
by someguy563 November 30, 2005
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They're great when you're young ("when I grow up, I'm gunna be...")
But then become a pain in the arse when you're like 48 ("you're nearly fifty! WAHAHAHA!").
Ooh yeah, ooh yeah, it's my birthday, it's my birthday!
by Merafel Estomar September 1, 2003
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A satanic ritual in which people gather round an object (usually called a cake) lit up on fire and then all sing there prayers to please Satan. At the end the leader cuts through the object with a sharp knife and all enjoy a feast.
jack: Did u go to Samantha's birthday.
ross: Yea!!
jack: Cool.
by sup_gurll6969 March 12, 2016
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It means something different depending on age group:

0-3: Too young to understand
4-9: Best day of your life
10-14: Day you're treated better than usual
15-19: Day opposite sex is more likely to put out
20-death: Day to celebrate a year closer to death*

*Exceptions is with your 21st Birthday due to it being the legal age of adult and you are now considered old enough to consume alcohol legally and some age in your mid-sixties due to being old enough to retire.
Birthday reactions:

Young child: YES!!!!! I'm now a year older!!!!
Pre-teen: Yes! Closer to a teenager
Teen: Hopefully a (member of opposite sex) will do me tonight
Adult (Normal): Hooray I'm a year closer to the grave.
Adult (21): TIME TO GET DRUNK!!!!!!
Adult (60s): Finally, I can retire
by Gaaraofthedamned July 13, 2011
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The day 9 months after your "Uncle" Barney spent the night with your mom because her "plumbing" needed some work.
Older man: "Happy 10th birthday Timmy!"

Older man(to mom): "Reminds me of the last time I put icing on your buns."
by Menyae Shoemaker March 28, 2009
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