Adj. A description of someone who mentally handicapped, but socially pleasant. This is best characterized by envisioning a smiling glassy-eyed retard sitting and clapping his hands yelling "Yay! Yaaaaay!"
"If I ever have another concussion I'll be 'Yay!' in a wheelchair!"
An exclamation that always needs to be louder. Most often used in conjunction with practicing cheers for a friends national competition.
RD: So now that you know the elements of a good cheer, lets hear one!
FS: *softly* yay
FS: *still softly* yay
FS: *again, softly* yay
FS: *Deep breath in, preparing for a loud cheer.* *Softly* yay