Sass is an abbreviation of sassy and sassy means a possessing the attitude of someone endowed with an ungodly amount of cool. You clearly need to come to sass class with Georgia Cody and I!
YOU FUCKEN WOT M8!! I WILL EAT YOU LIKE A POPCORN CHICKEN SNACKBOX... The moment I will take a seat is when you come off anon and you get repeatedly stabbed by a rusty butter knife by a midget