birthday sex

when you have coitus on the day that represents the day of your birth but it won't happen on the same day that you were born

"Your birthday sex has been declined"

by Vita Smart November 28, 2022

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Mallory’s Birthday

The best day of the year! The most beautiful girl on the planet was born on this day and you got to celebrate!!
November 1st is the date and don’t forget it.

I’m so excited, it’s Mallory’s birthday!!!🎂🎉

by The Boyfriend Matty B. October 31, 2021

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Birthday Style

When a friend or significant other of yours is out of town during the actual time period of your birthday, but they take you out for something and pay for everything to make up for it

H: Hey babe, I know I was in Spain all summer and your birthday was in June, but can we do something birthday style?
J: Sure. Take me out for coffee.
H: Great! I'll pay for everything because that's how we would have done it if we had gotten to do it on your actual birthday!

by Adam buckley November 28, 2020

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Ruby Birthday

A Ruby Birthday is when you are the same age as the time you were born.

Birthday Boy“I was born at 2:21 PM and I’m 21 today, therefore its my Ruby Birthday”

Particularly annoyed person “Piss off nerd.”

by Slimyundercookednyquillchicken August 6, 2023

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the birthday rule that everyone knows

The rule stating that if you are dating someone or "talking" to that person, you cannot make them choose any plans for future engagements within 10 days of their actual birthday. UNLESS that person requests to make the plans. All other plans must be made by the person whose birthday is not within 10 days.

Dylan: Caroline, you have to make the plans for what we do tomorrow.
Caroline: No I don't you ginger, my birthday is in 8 days and its the birthday rule that everyone knows.

by duhofcourse December 21, 2010

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