yayful 

1. Warranting the expression "yay"; possessing the quality of yayness.
2. Extremely happy; joyful.
3. Unbelievably, soul-shatteringly cute.

1. "I just won a million dollars! How yayful is that??"
2. "Video games make me yayful inside."
3. "Awwww, look at the little kitten! So yayful!"

yayful by Kiri Amaya July 20, 2008

yayful 

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.

yayful by Nikhil Mathew December 9, 2008

Yayfullness 

A general expression of delight that is longer but more enjoyable to use than "yay." Usually reseverd for situations that are not overly common so that the phrase does not become unwieldy.

Friend 1 "Finals are finally over!"

Friend 2 "Yayfullness!"

Random person who just got a new phone "Yayfullness!"

Someone who snagged the last cookie in the school cafeteria "Yayfullness."

Yayfullness by AverageEmi June 7, 2009

Yarful 

Having or exhibiting the qualities of a pirate.

Did you see the parrot on that guy's shoulder?
Yes, it was quite Yarful.

Yarful by Amberian July 12, 2010