Top Definition
A person who's post's seem to always ruin an ongoing comment thread. They do this by going off subject, insulting others, or by not understanding the context of the remarks. Basically clueless. Ruins the thread for others.
The "Threadator" killed the thread. No one ever wants to post after the "Threadator". He is such a Threadator.
by s.fierro October 08, 2010

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