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1.
Someone who signs up for a YouTube account so that they can leave mean and insulting comments on other people's videos. An anti-youtuber has no videos themselves and has little or no channel views. Sometimes with subscribers that are from their other fake accounts, or their friends which the anti-youtuber forced them to subscribe to.
Hey Johnny, did you see that hate comment that someone can left on your YouTube video?

Yes, what an anti-youtuber.

I know.
by snlfilm May 26, 2010