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One who surfs for random youtube usernames and posts comments such as "I was Here", or a comment related to the username, or just plain spam.

Some popular stops are:
Dude, I've really been practicing this hobby of bein' a JOOTUBER. It's pretty fun, man. Now people are starting to comment on my channel! I'm already up to 100!
by Ashabeth September 02, 2008
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