"The last stand against WeeGee" is a YouTube-based video series made by the YouTube user "Achille12345." The series is focused around several memes of the "YouTube Poop" fad, but mainly around the (usually believed to be) evil "Weegee." This video leaves off when it's just Malleo and Weegee left to fight. But in this video, Malleo uses a Fire Flower, making him much more powerful and is able to defeat Weegee with gigantic force. If you need more elaborate detail, view the video. There is an in-video description. "Gay Luigi" is really just "Luigi" from Hotel Mario, obviously.