Character: yakiu no oniichan

やきうのお兄ちゃん (Yakiu no Oniichan, "Big-Bro of Basebaww"), also called なんJ民 (Nan-J min, "Nan-J folks") or 野球民 (Yakyū min, "Baseball folks")

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One of the characters originated from 2channel (now 5channel), creatures portray anons of Nan-J board.
They are strange-looking humanoid creatures with orange to yellow skin, eyes popping out, black to grey mane, a pointed snout protruding like a beak. They love baseball and speak a language resembles Kansai dialect called Mōko-ben (猛虎弁, "Fierce Tiger dialect").

The female version is called Man-J min (まんJ民; man is for まんこ manko, "pussy" btw).

Depiction in AA

This character is originally an ASCII art (Shift-JIS art technically), that is one of 2channel ASCII Art Characters.
He is depicted in AA as follows:

　　彡(ﾟ)(ﾟ)
　 彡　　と
　　（　　　）
　　｜｜｜
　　（＿）＿）

Reception in the West

He is known as Graggle Simpson or Gumbly in the Western World, since a shitty collage image with him added to a screenshot of The Simpsons went viral as a meme.