zowabunga
Like cowabunga, but less cool. Can be used when surprised, or when you are agreeing with someone.
Person 1: Hey, I heard there's a new TMNT movie coming out!
Person 2: Zowabunga, that's awesome!
Person 1: Turtles are my favorite animal.
Person 2: Zowabunga, mine, too.
Person 2: Zowabunga, that's awesome!
Person 1: Turtles are my favorite animal.
Person 2: Zowabunga, mine, too.