Sarzz
It is a way of saying "sucks sorry" in a sarcastic tone. It can be a way of showing no sympathy and completely and utterly blowing off another person. You use this word when talking to someone you do not like or have no patience with.
Why didn't you invite me to your party last night? I called you over 10 times and you just kept ignoring it. I thought we were buds?
Sarzz.
Sarzz.