MangaHEAD
A person who has read a large multitude of manga, usually having read over five thousand chapters. Some could have even read over 10,000-20,000 chapters. Most have read series such as Naruto, Dragon Ball, Hunter x Hunter, Toriko, etc.
"I'm a true MangaHEAD, I've read over 35,000 chapters of manga. How many have you read?"

Oh, I've read about 1.5k chapters.

"You aren't anywhere near a MangaHEAD."