It's from online gaming. To stomp means to defeat soundly/easily. To ROFL is to roll on the floor laughing. To roflstomp is to defeat someone so easily and c

It's from online gaming. To stomp means to defeat soundly/easily. To ROFL is to roll on the floor laughing. To roflstomp is to defeat someone so easily and completely that it becomes so comical you'll be ROFL.