GG has been standard end of match shorthand for good game in online gaming for decades, and ez is simply easy shortened for chat. Put together, gg ez became a familiar piece of trash talk in lobbies, streams and highlight edits, usually typed rather than said with respect. This ferkin version pushes it into meme territory by making the insult sound louder and sillier. It survives because it is short, instantly understood by players, and flexible enough to work as a genuine brag, an ironic joke after a messy win, or a friendly dig between friends.