Half-birthday

a day approximately six months before or after the real anniversary of a person's birth. Typically celebrated by people who feel they are twice as important as everyone else or people who want to get more presents by coming up with a lame excuse.

Hey, Roshni's half-birthday is tomorrow, she's turning 21 1/2, should be get her something?

No - because it's a made up thing.

Half-birthday by Da Zhong October 11, 2011

Half birthday 

You're birthday but half the way inbetween your birthday from the previous and next year (:

WOOOOH! My half birthday in a week!

Half birthday by yapdizap April 4, 2009

Half Birthday 

I know you all are hot n popular and you have so many full birthdays to celebrate, so why should you bother with a half-assed attempt at your half birthday? Because it's the Best. Day. Of. The. Year. Nobody cares about your half birthday (please make no exception for mine), so do you and do it up, but don't do too much because it's your half birthday. I'm eagerly awaiting an invite to your halfway decent celebration.

Emma's half birthday is coming up on Feb 1. At half past one, she's taking her friends hiking. At half past six, they're making half-assed pizzas. They'll finish off the festivities by getting half baked and playing half a game of something or other.

Half Birthday by EvPlatt January 27, 2020

Half Birthday Bros.

Two guy friends who have their birthdays exactly six months apart.

Guy A: Yo, when is your birthday?
Guy B: September 26th, 1981.
Guy A: No way!!! My birthday is May 26th, 1981!!
Guy B: Holy shit! We're half birthday bros.!
Guy A: He'll yeah! That's fuckin' sweet!

Half Birthday Bros. by LS2k July 12, 2021

half birthday december 5th 

you will be very lucky to have this and a friend who gives you pressies on your dec 5th half birthday!

'I have a half birthday december 5th, that means im amazing!'

half birthday december 5th by ilooooveaxotlsss December 7, 2022

jerb 

well known from south park
rednecks get angrry that future folk took there jobs so they yell
They took ouare jerbs!

Them future folk took ouare jerbs!

jerb by Jimberley Kim April 7, 2005

Cheeks 

An Irish phrase meaning shit, derived from ass
(Not to be confused with the literal description of one's buttocks)

"Did you hear the song Aylek$ dropped?"
"Hardly. Her music is absolute cheeks."

"My boyfriend say LaFlame is cheeks."
"Tell your boyfriend I said it's his mixtape that's cheeks."

Cheeks by thecartisan April 26, 2020