quicko: unlucky

Maybe this is more an organizational idiosyncracy, but every week at volleyball the word used more than the word the is unlucky. Perhaps this is only because I'm in Beginner 2 and it's a very ept word (the less tactful might substitute wow, that was shockingly awful!), but the instructors use it incessantly. Like every time anyone misses the ball.

I'm not sure if it's used quite so profusely in the rest of Australian life, but I'm certainly never surprised to hear it creep out.