Direct usurpation of the name/word: Blofeld from the
James Bond 007 movies of yore.
Generally denotes a "Noob"/"Nub"/"Noobzor"/"Cabbage" player/opponent in online FPS, who has no skill, but proceeds to play at any rate, increasingly so badly, others go
Napolean Dynamite and get worse as well (even skilled players).
Variations:
Used in
conjunction with any Seinfeld episode that Kramer isn't in.