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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!'
More from Urban Dictionary
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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