Cherrymanning
Repeating the same mistakes and expecting different results. This is usually done with an obliviousness unfathomable to those in the individual's presence. Can also be used in the context of "getting cherrymanned" in which an individual is submitted to the reoccurring idiocy of another's mistakes, or worse falls into one of their cherry traps.
That noob keeps cherrymanning up the forums with his incessant dribble. Someone should really give him the ban hammer and put him out of his misery.