anti-birth 

Slang for contraception

That chick I've been hooking up with forgot to take her anti-birth and now she says she's pregnant.

anti-birth by escapedconvict March 14, 2012

Anti-birthday 

A day that occurs near your birthday (usually within 3 or 4 days of it) that really sucks ass for no good reason. Some believe it is meant to balance out the good day that you had on your birthday. Often, an anti-birthday will occur even if your birthday wasn't that great.

John:"Hey Jim! I heard u turned 17 the other day!"
Jim:"ya..." *walks away*
John:"what's with him?"
Joe:"oh dude he's havin his anti-birthday. he's been depressed all day"

Anti-birthday by bSbTbEaK January 13, 2009

anti-birther 

a contraceptive pill.

She takes anti-birthers on a regular basis.

anti-birther by uttam maharjan November 16, 2011

Annibirthday

The annual celebration of one's birthday.

There is only one day I was born. I celebrate the anniversary of that birthday every year. Instead of saying happy birthday, say happy annibirthday!

Annibirthday by Kevin "Honky Tonk" Tonkin August 29, 2016

Annibirthmas 

A term that groups an anniversary, a birthday, and Christmas into one occasion that would only require one gift or celebration

HAPPY ANNIBIRTHMAS !!!
I received this watch for my annibirthmas.

He took me on a cruise for my annibirthmas.

Annibirthmas by Musch40 September 28, 2018

Annibirthary 

The anniversary of one's birth.

Interesting way of saying 'birthday'.

Today is my annibirthary, I hope I get lots of presents and cake!

Annibirthary by hafofme April 15, 2010

annibirthary 

When a husband and wife share a birthday and then get married on their birthday.

Katie and Greg share a birthday and then got married on their birthday. This day is now their annibirthary.

annibirthary by gmoney625 June 29, 2012