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A person who goes onto your Myspace, Facebook etc. with the intention of hacking into your comments and reading them. They then proceed to have a go at you for something or other.

The word was first coined on Myspace, by Aimee.
Girl #1: I can't believe you said I fancy Tom!
Girl #2: ...How do you know I said that?
Girl #1: Your Myspace comments.
Girl #2: You're such a commentpaedo.
by Whaleland July 27, 2009
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