The secret of staying young is to live honestly, eat slowly, and lie about your age. 

Few women admit their age. Few men act theirs.

The best way to remember your wife's birthday is to forget it once!

Happy Birthday on your very special day, I hope that you don't die before you eat your cake.

Growing old is mandatory; growing up is optional! HBD :)

Happy Birthday! So many candles...so little cake!

Happy Birthday to you, 
You live in a zoo, 
You smell like a monkey, 
And you look like one too!

Happy Birthday! You're not getting older, you're just a little closer to death!! :)

I'm so lucky to have such a great friend like you... who'd forgive me if I forgot his(/her) birthday. Happy Belated Birthday!

Sorry I forgot your birthday. Can you please reschedule it for sometime next week? ;)

I am sorry I missed your birthday, you have had so many I lost track! 

How do you expect me to remember your birthday, when you never look any older? Belated HBD! :)

Actually, I didn't forget your birthday, but since you forgot mine I waited until a day after to send this. Belated HBD! :)

Hopes your tiny, soul-sucking cubicle provides you a warm atmosphere in which to celebrate your birthday!

Happy Birthday even though I tried to kill you all those times when we were kids! 

The fact that a Facebook reminder told me it was your birthday doesn’t make it any less special. HBD! :)

Happy Birthday to one of the few people whose birthday I can remember without a Facebook reminder!

When I turned two I was really anxious, because I’d doubled my age in a year. I thought, if this keeps up, by the time I’m five I’ll be 64!

Age is something that doesn’t matter, unless you are a cheese. Happy Birthday! :)

Birthdays are good for you. Statistics show that the more you have the longer you live. HBD! ;)