n. A Wikipedia account holder who uses acquired privileges to exert dictatorial powers over contributors. Wikitators frequently throw away factual contributions from subject matter experts that the wikitator is personally ignorant about, using their account privileges to enforce their will.
I corrected a mistake in the Wikipedia entry for where I live but some wikitator threw out my work and then banned me when I tried to fix it again.
The day after Ruthie said Barack Obama was Osama Bin Laden's first cousin, she pulled it up on Wikipedia and proved that she had read it. We all knew that she went home and wikiwashed the Barack Obama profile.
The process in which a user logs on to Wikipedia to research a specific topic, only to find themselves on a completely unrelated topic several hours later.