Define Happy Birthday Meaning

I would define you the song,
but it's unfortunately copyrighted.

When it's your 31st birthday, and you live on your own, with no wife, have a crappy job, no friends and no money, this is what you say to yourself in the mirror before bursting out into tears.

Happy anniversary from escaping from the womb!

when you flash an attractive person, show your goodies, free the nip. a free gift for someone you’re trying to impress. just life your shirt and there you go.

a good comeback; you could say this if the person you are come-back-ing with has already used the 'your face' comeback

When your wife: (1) after a few alcoholic beverages picks up a hot horny brunettebabe with a nice ass and brings her back to your hotel room for some good times (which include you), and 2) doesn't bust your balls the next day over it. Note:(Strippers are often an integral part of a Happy Birthday)

on a mans birthday his spouce/girlfriend must make all of his favorite foods, then he proceeds to jizz all over them and his spouce/girlfriend must eat them all and if she fails to finish she must put it all in a tupperwear container and save it for later

Happy Birthday to anyone who's bored enough to look up happy birthday on their birthday...

9 months before this date, your parents decided to have unprotected sex

happy-whatever reason im giving this small insignificant piece of crap to you.
Should be said with enthusiasm.