A player in massively-multiplayer online (
MMO) games that is content to complete mindlessly repetitive tasks in order to increase an
arbitrary number within a game to "
level up".
Player A: "Hey, QuidditchKid792. How did you get your
level up so fast from last night? You must have gone up three levels!"
Player B: "My friend is a grinder, and he
leveled me up all last night in exchange for some
Tier 6 equipment."