Women's clothing which is making a comeback. Originally made from whalebone to enhance bustiness and decrease waist by making the wearer almost incapable of breathing.
Kiwi slang contraction of someone's name - either affectionate or insulting - coming from Bogan culture ( Bogan = tight black jeans, white sneakers, drive around and around the same small town streets in beat-up old cars)
Erin becomes Ezza, Harry becomes Hazza, Sharon becomes Shazza, Barry becomes Bazza etc