Very rough Japanese for "yay." It can also be used to express (good) surprise.
Commonly used among otaku.
Commonly used among otaku.
by Sage Knight April 15, 2004

A cartoonish way of screaming. An outburst. Usually used when you saw something kawaii or when you've been introduced.
Girl: This is my friend, Alice.
Alice: WAI!!! Nice to meet ya!
*looks at a puppy*
WAI!!! That is so adorable!
Alice: WAI!!! Nice to meet ya!
*looks at a puppy*
WAI!!! That is so adorable!
by BlackTwilight October 06, 2003

by gansvv February 22, 2011

Wai-wai!! I won the lottery, waaaaai!
by T May 24, 2006

by rottieboo February 05, 2010

An expression of approval and support for someone who handled a tough or tricky situation with grace, skill and adroitness.
"Way to be there Dave, if that ground ball had gotten past you, it would have cost us the game.
"Way to be there Marcy, the client was ready to pull the account before you presented the new marketing demographics."
"Way to be there Marcy, the client was ready to pull the account before you presented the new marketing demographics."
by HSTRUE November 15, 2011
