YAY! 

1. An expression of joy usually accompanied by raising both arms in the air; the higher, the more joyful.
Can also be used sarcastically.

Chocolate and sex? YAY!

YAY! by Elaine October 17, 2001

Yay

A slag word for cocaine mostly used in Southern California

I was pounding some yay last night

Yay by Bigbankroll562 December 21, 2017

YAY!!!

Extreme happiness. Can be used in response to :) .

Shaun Deffé: YAY!!!

YAY!!! by Somecoolperson10222 March 31, 2009

yay

a word used not only to express happieness, but also in conjunction with hand symbols to express size.

-YAY! i won the lottery!

-hes about yay high *hold out hand*

-the box was yay wide by yay high

yay by berserker395 July 23, 2005

Yay

Often used as an exclamation for joyous occasions. Also sometimes used as a slang term for "this" when describing an object or person.

Man: Did you see a man go by, about yay tall?

Yay by Happpinesss June 5, 2010

yay

the illicit substance also known as cocaine

You can find me in St. Louie,
Where the gun play ring all day.
Some got jobs, and some sell yay.
Others just smoke and fuck all day.

yay by Nelly February 9, 2005

Yay

1. Slang for Cocaine.
2. Slang for cocaine that is relatively cheaper than the real stuff because it has been cut into a much less pure form.
3. An expression of enthusiasm or joy, often meant to be facetious.

Yay, a bag of Daz!

Yay by Illusion420 September 1, 2010