chatz

A guy who is of little or no value to society, and often self-promotes beyond belief.

From the Latin word Chatenz, meaning to publicly fart, Chatz is when you crack a particularly rank fart, and just as you let it out someone walks up to you, walking into the damage zone of the fart, realises you just farted, and stares at you awkwardly, both of you knowing you just cracked one.