Top Definition
If you can do 15 waterfalls within 10 minutes and brag about it on an irc chat, you may be a Pown Otto. Pown Otto also is a runescape player who has a 2 man army clan and spends the rest of his day doing graphics on his forums that no one will ever look at or even join.
Joe: Hey man, I just did 15 waterfalls! Bill: Wow, your such a Pown Otto!
by petbeav3r August 25, 2011

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