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1. Alternate way to read out PB (normally petabyte, 10 to the power of 15 bytes) to emphasise the enormity of the storage capacity through association with oversized porn collections.

2. A vast and expanding number which is difficult to qualify but approximately equal to the total amount of storage worldwide that is dedicated to porn.
Damn, there must be at least a pornobyte of torrents on this darknet.
by Morthandeus October 23, 2009
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