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An online video that garners so much traffic in a short amount of time that it leads the server hosting it to crash.
Joss Whedon's Dr. Horrible was a real sitebuster.
by Mr. Brady Brim-DeForest July 27, 2008
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2
An online video that when released attracts so much traffic that it crashes your site, the same way a blockbuster movie sells out theaters.
"Dr. Horrible should prove to be a profitable venture in the end, and will probably establish itself as the 'sitebuster' hit of the summer..." – Tubefilter
by Tubefilter July 21, 2008
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