boo-ya
An exclamation of joy, excitement or triumphAn exclamation of joy, excitement or triumph.
Meaning
1 senses(slang)An exclamation of joy, excitement or triumph.
1996, Jerry Maguire (film) -- Catch the ball!' BOO YA! Touchdown! I make miracles happen! http://www.imdb.com/title/tt0116695/quotes