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a deep and meaningfull expression of delight and pure happiness, can also be used for an agreement to a proposal
i won! wooyay!
or wooyay! that sounds great
woo-yay by lady whiplash August 1, 2003
A word of happyness. used often online (and alot on b3ta.com)
person 1:I just completed Burnout3
person 2:Woo yay
woo yay by Cloud November 3, 2004

Woo Yay! 

More often lowercase, woo yay is used as an apathetic response to someone's irrational exuberance.

Also known as "Here's a quarter, call someone who cares."
Little Bro: OMG LOOK I GOT LEVEL 9 IN FF7!
Big Bro: woo yay.
Woo Yay! by pinano July 14, 2004

Woo Yay! 

A shout of joy. Pretty much the same as w00t!. Usually used online.
I finally beat that video game! Woo Yay!
Woo Yay! by N8NESS December 14, 2003

woo slash yay

A term of joy and delight usually used in conjunction with a swift diagonal hand chop when say the word "slash"
"Hey! Guess what guys? I just won a lifetime supply of red Smarties! Woo Slash Yay!!!"
woo slash yay by Bin Bag Ninja October 7, 2007

woo woo woo yayayee 

a word you say when you're happy.
You see a really hot guy, and he walks over to you. He asks you for your number, and when he leaves your so happy that you say, "woo woo woo yayayee!"
woo woo woo yayayee by Marjon December 22, 2005
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
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