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 11, 2008
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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
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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
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A typo by someone who is too excited and hits the "e" key while going for the "!" key by mistake.
I got $25 for christmas! yaye!
by Demono January 12, 2004
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full of yay. awesome. replacement for any postitive word. used describe people named carolyn
Man look out those waves, so yayful.

Bro, i found 60 cents on the street, HOW YAYFUL IS THAT.
by Nikhil Mathew February 14, 2007
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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 29, 2009
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A word that my best friend Katie says. :) Yayness for katie!
Adapted from a conversation with the ever pretty Katie ;)
IfTimeStodStil: yayness!
by Ben January 4, 2005
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