A feature from Pokémon X
and Y, and has been in the games since then. It's for people
to trade each other good Pokémon at random, but most people trade Rattatas named something to the effect of "
Cocklick".
Ash Ketchum: Hey, Brock, I just did a Wonder Trade! I got an
Oddish named "
Queef Leaf"!
Brock: Where is Pikachu?