In its most basic definition, a twink is a character with better gear than one could have easily acquired on one's own. The term can also refer to the twinked character itself (e.g., "My twink has all the best gear."). A twink in this usage is a type of powergamer and munchkin. In role-playing video games, particularly MMORPGs, twinking refers to outfitting a new character or player with items or other resources that are not normally available to new or low-level characters. It can also be used to describe the process of keeping a video game character at a low level while using in-game currency, earned by a high level character, to provide it with superior equipment.
a powergamer who seeks to acquire power and loot at the expense of their teammates.