when a guy is running, doing jumping jacks, going down stairs, etc. and his balls hit his inner thigh and it makes a loud sound similar to clicking your tongue. it is a word i made up when my friends and i were playing scrabble w/o rules. but now we use it everyday.
"Dude, today in soccer when we were running down the hill and i heard someone qaz so loud i thought they broke a leg!!
by Zybob January 24, 2008