A joke within the Runescape community for when someone gets lucky with a high value drop or stake (gamble). "Share, I tb'ed" means "Share the loot, the Teleport blocked the victim." The term used to refer to player-killing teams, who normally would have a specific person to teleport block the victim, preventing them from escaping. The teleport blocker would receive a portion of the profits for doing this, and the term came from this. Now, it's used as a joke when players recieve high level drops or items, such as a Draconic Visage or godsword hilt.