A term given to Pokémon "fans" who only enjoy the original games in the series. Many of them were kids in the late 90's and grew up playing Pokémon Red, Blue, and Yellow Versions on the classic Gameboy (as I did). However, their negative reputation comes from their constant, idiotic criticism of the brilliant
innovations made by more recent games in the franchise, particularly the new Pokémon themselves. Some
Genwunners have even gone so far as to deny the existence of these Pokémon, maintaining that the
original 151 are "the only ones that count". They also often complain that the designs of the new Pokémon "aren't as creative." A single look at some of the newer Pokémon
makes it easy to recognize that a solar moth deity, flying gargoyle-shaped scorpion, and an antimatter-controlling
basilisk might just be a bit more interesting to some people than a pile of sludge and some eggs. Basically, Genwunners are just biased, nostalgic idiots who can't understand that things need to change in order to progress, and that children growing up these days might see things differently.
Example:
Sensible
Pokémon Fan: "Hey, did you see the new
Mewtwo forme? I can't wait for Pokémon X and Y!"
Genwunner: "WHAT?! How DARE they
desecrate my childhood! They've turned my precious Mewtwo into an alien! This is EXACTLY why these games have been going downhill. They should have just stopped after the original three. Anything that comes after is SHIT."
Sensible Pokémon Fan: "Are you kidding me? You're saying that something is bad just because YOU didn't grow up with it? Grow a fucking brain. Every Generation of Pokémon is great!"