The act of setting someone on fire and then kicking them to a pulp, for a sick act of amusement. People say they have "depleted" someone to gain ranks in their circle of friends or to scare others.
"I so set this dude on fire last year at school, then kicked the shit out him while he was on fire. It was well funny, but it means that I'm grounded and I have to sit in my room in the dark all day"
"Hahaha Really? He got totally Depleted! And you're so gunna get arrested"