YY 

YikYak; a smartphone app in which you can chat with people around you anonymously. It's popular in college areas especially in the US.

"How's your summer class going?"
"It's so boring. I'm there on YY must of the time"
"What's YY?"
"YikYak, you don't know it? Go and check it out it's worth trying"

YY by AxMan(>|<) July 22, 2015

yy 

another word for yay or wow most used in texts or on twitter

person 1: hey i got a new phone!!!

person 2: yy that‘s so cool

yy by louisfairylight May 21, 2021

YY 

An individual with a large Richard.

Hey sam, you have a huge YY!

YY by umbc_yy September 3, 2021

yy 

To invite someone

Yes, uwu is joining! I just sent him a yy.

yy by Nerouwu April 8, 2022

yy 

a person with a first and last name that begins with 'y'

substitute teacher: is yy here
yy: present!

yy by shmuggy January 16, 2023

yÿ

When you are not too bored but still a bit and are glad to see that y only has one other appearance unlike e, which you have already tried

But yÿ did they do this

yÿ by LIFEL1K3 February 13, 2021

YY rated movie

A movie for Those 25 and older

Can you give me a YY rated movie?

YY rated movie by 459395 March 2, 2022