Yayish

to be extremely happy.
Sometimes resulting in a large smile and the flailing of the arms in a 'cute' penguin like manor.

I just feel yayish being with you.

by Keeranrussell January 2, 2009

Yayishness

The likeness of yay.

That was so yayishness.

by The Yay master February 3, 2010