Pertains to any number of easy-to-play/popular World of Warcraft classes and/or arena team combinations in World of Warcraft. Popular examples are restoration druids, holy paladins, holy priests, and warlocks of all kinds. Also sometimes known as flavor of the month.
"OMG, easy mode resto drood sl/slock couldnteven beet us! wtfpwned! LOLLERBLADES!!!!111!1!"
"I'm sick of playing all these easy mode restoration druid/affliction warlock teams that sit at the top of the arena ladder."