Maeo

Maeo, a deliberate misspelling of "Mario", refers to a series of fan artworks and game modifications featuring a poorly illustrated version of the video game character Mario.

Origin
On April 8th, 2010, SMG5 uploaded a video titled "HOW DRAW SOOPER MAEO", containing footage of a Mario illustration being drawn in MS Paint accompanied by a distorted version of the music from the "1-1" Super Mario Bros. level.

Spread
On May 31st, 2013, user "PSmweegee" uploaded a game called Maeo, which was a mod of the 3D Sanic 2 game.

Notable Examples
As of April 2018, there are more than 8,987,876 fan art illustrations hosted on DeviantArt under the tag "Maeo".