Yay means excited!
" Yay!!! I can't wait to go on my vacay! "
by wanda (O_0) May 31, 2009
a word used when really happy, or faking really happy
raising both arms in the air and waving them back and forth.
YAAAAAAAAAAAAAAY!!
usually used in conjuntion with the words: sweet, totally, dude, and awesome.
yay!! our fashion project is totally awesome!! yaaaaaaaaaaaaaaaaaaaay!!
haha, i love sara.
by madilyn October 11, 2006
A happy word! I mean look at it! It looks so happy!
You know what's a happy word? Yay!
by i like ponies and unicorns December 26, 2009
An obnoxious incorrect spelling of the word "yea", used as a positive exclamation or sign of approval. This spelling was likely invented by teenage girls using instant messaging during the '00s.
"OMG we shuld totes hav a slumber party!!!"
"With pillow fites 2!!!"
"Amber sed shes comming!!!"
"Yay!!!"
by Dick Shunnary October 10, 2009
the monosylabbic celebration phrase that is better than lol like COD6 is better than cholera. Does not stand for anything and can be semi ironic.
"Oh my god, the US government have invented a new gun"
"Yay"
by QuicklyLosingPopularity February 06, 2010
Much joy or happiness
"Whoo, HOO!Yay! School is out for summer! See you guys next year!"
by anonymous March 12, 2005
1 Exclimation of Happiness

2.Slang name For Bay (area)
1. I just got robbed. YAY!

2. You from the yay?
by ac February 13, 2004

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