When someone is being the biggest n00b they could possibly be. Often used to insult inexperienced users when they fuck up big time while playing an online computer game.
DragonMan32: *shoots own teammate*
Renegade: omfg, Noobus Maximus! You want to shoot the RED people!
DragonMan32: soz!!1
Renegade: omfg, Noobus Maximus! You want to shoot the RED people!
DragonMan32: soz!!1
by illEATurHARTout March 19, 2005
The ancient Latin term for a n00b during the days of the Roman Empire. It now can be used to describe someone of maximum noobic proportions.
Emperor Nero was total noobus maximus.
...or
Kid 1: I just failed my basic English class.
Kid 2: You're a noobus maximus.
...or
Kid 1: I just failed my basic English class.
Kid 2: You're a noobus maximus.
by Skyther Gitlow January 13, 2007