Its an expression of joy
person #1: Dude! you just won that game!

Person #2: yayness!! that was a good one
by Dudishdude August 29, 2006
(interj.) said when expressing happiness!
i got a 100 on my test. YAYNESS!
by jonny December 03, 2002
When yay just wont cut it
.....finding 50p in a public toilet
by Adam Smith March 09, 2005
The level of yay in a person, place or situation.
Great happiness= high yayness
Sadness= low yayness
by Brian February 23, 2004
when something really really good has happened, instead of saying yay, you say Yayness
Brian: I'm going to a Greenday concert this Saturday!
Karen: Yayness!
by Oscar the Grouch March 10, 2008
showing expressions of great happyness followed by a long list of exclamation marks. usually yelled by some freak who is over excited about something...i.e. what i do, a lot!!!!
omg yayness!!!!!!!!!!
thats sooo yayness!!!!!!!!!
by FreAkneSS February 24, 2005
An expression in which the speaker is expressing an exasperated height of excitement.
"I shall see you in the morning!" "Yayness!"; "We leave for the cruise in 2 weeks! Yayness!"
by Booism July 28, 2009

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