The very first recorded blossoming of sores on an individual (either orally, genitally, anally, or elsewhere on the human body) as caused by the herpes virus.
Todd: Sam, it looks as though I've got a pretty bad sore down there. Do you have any clue as to what it might be?
Sam: Why, Todd, that appears to be a case of genital herpes! This must be your first outbreak; in which case, Herpe Birthday, my friend!
Someone who has the same birthday as you. It is refered to as a shared birthday. Some may refer to it as a mutual birthday. Facebook is notorious for displaying all your friends' birthdays on your homepage to see common birthdays. When the time for the birthday comes, one friend says happy birthday to another and the other friend replies the same way. It is a known fact that people enjoy discussing common birthdays.
Guy 1: Dude, did you know Jay Leno is a birthday buddy with Jessica Alba?
Guy 2: Yea, I saw it on The Tonight Show last night.
Guy 1: Yea, they're both on April 28th.
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The mass number of facebook wall posts that one receives on his/her birthday, especially from people that the recipient never talks to.
Guy 1: Dude, I've been getting wall posts all day, I don't even know half the people writing on my wall.
Guy 2: I know, the birthday barrage can get pretty annoying sometimes.
Someone who's birthday is the day before or after yours
Person 1: happy birthday! I guess that means we're birthday neighbors.
Person 2: really? Was your birthday yesterday or is it tomorrow?
Person 1: my birthdays tomorrow.
Person 2: well happy early birthday, birthday neighbor.
An excuse used when you want to sit at home and do nothing rather than go out or follow plans someone has made.
I can't go tonight, it's Ray's Birthday, sorry.
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from midnight to midnight on the day of your birthday, you can say and do whatever you want without consequences.
joe: hey sally I want to fuck you
sally: what the hell?
joe: BIRTHDAY IMMUNITY!
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To defriend someone on facebook on their birthday when you don't care to wish them a happy birthday.
"I just pulled a birthday defriend. He totally won't notice since he'll be so distracted by all the 'happy birthday!' comments posted on his wall."