In the WoW (World of Warcraft) Twinks are alts (alternative characters) level 19 or 29 made by high level players with the assistance of high level friends to own at BGs (Battleground). They run instances and quests to acquire blue or green items with maximum stats they can have on the level cap.
Twinks also gather blue gears from AH (auction house) that are random world drops and get a high level enchants on the weapon such as "Crusader" or "Enchant Weapon - Agility" and other gear enchantments.
Zomg! That lvl 1 twink rog just pwned a lvl 10 warr XD