by P00pc0rn October 29, 2019

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.
Guy 2: I know, the birthday barrage can get pretty annoying sometimes.
by achris9 February 19, 2009

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.
Person 2: really? Was your birthday yesterday or is it tomorrow?
Person 1: my birthdays tomorrow.
Person 2: well happy early birthday, birthday neighbor.
by Random person #135689293190 June 29, 2017

An excuse used when you want to sit at home and do nothing rather than go out or follow plans someone has made.
by Cockmaster7 February 9, 2014

from midnight to midnight on the day of your birthday, you can say and do whatever you want without consequences.
by bdayimmunity May 24, 2010

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."
by its_just_easier February 27, 2012

A mental state indicating a period of intense revelry and hardcore drinking on the part of one or several people.
Jonno: “I’ma go into Birthday Mode this Saturday”
Blizzle: “Oh man, is this gonna end with neon-colored vomit all over your room…again??
Jonno: “Dude, that was Neil’s last Birthday Mode”
Blizzle: “Oh man, is this gonna end with neon-colored vomit all over your room…again??
Jonno: “Dude, that was Neil’s last Birthday Mode”
by blizzlinBR January 19, 2009
