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The "period" of time wherein a woman's period, which normally happens monthly, happens only once in a year. This is usually the result of certain Period-controlling medications that can extend the time between periods to from between 3 months to 11 months.

The Yeariod will typically be a violent cataclysm of rage and decay, lasting a week and may be thought to contribute to global warming due to the heightened Btu output in yeariodites.
"Im on this new birth control pill and it makes my period come like only every twelve months, augh!

I feel like I'm about to get my yeariod!"
Yeariod by Karlsefni February 22, 2011
Words you can keep
The yearly celebration of when a girl first started menstruating; a period anniversary.
My yeariod is January 5th.
yeariod by KoisoraRECYCLE April 11, 2009
Related Words
That time of the year when you get all grumpy and naggy; the yearly equivalent of a period.
Chris: Pass me that pen already, HURRY THE FUCK UP!

Mike: Listen Chris, you gotta calm down.

Chris: Alright alright, I'm just having my yeriod, sorry.

Mike: It's ok man we all go through that every year, I feel ya bro.
Yeriod by SnappleJuice March 14, 2011

Yearious 

Conversation where one is serious and hilarious at the same time.
"Don't be so yearious"

"I spoke on the phone with Jari, he was so yearious!"
Yearious by Bananapealer August 7, 2012

YearMoDa 

Proper file naming formatting for filenames of all sorts of media you hope to store on your computer or phone. When you use yearmoda formatting all your files will be organized forever sortable by date. The YearMoDa specification requires an 8 digit number then an underscore, then whatever you want to call the file. The important part is the 8 digit prefix that always starts with a 4 digit year, then the two-digit month, and two-digit day, Hence YearMoDa.
20210301_bigthumbs.jpg - this is how you do it!
Yearmoda so phat... you couldn't lose a file if went bonehead tomorrow.
hey babe, you wanna drop all our files into one drive and just yearmoda.
YearMoDa by YearMoDa evangelist March 1, 2021
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