The day i wore a flange hat!
Wow can you remember this mum.. twenty years ago i wore your flange hat!! Happy Birthday to me!
by Trazgoth September 16, 2009
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The celebration of the occasion of which you exited a vagina. Not to be confused with sex.
My birthday is in July. (Never had sex in July though)
by Kurtsie December 20, 2005
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Nine months after your momma did something nasty and have birth to an annoying baby.
by Suzie Sheep February 2, 2019
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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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