An expression following a positive moment in one's life, often meaning "Hell Yeah"! If written, "Hanya" is followed by an exclamation point.
Your playing Madden 2005, 6 seconds on the clock, your down by two, you choose to kick a field goal. You line it up, you kick it, you know it's good for the game. When the ball is kicked is should be followed by a sharp and punctual "Hanya"!