A twatabyte (derived from the SI prefix twata-) is a unit of information or computer storage equal to 1000 yottabytes. It is commonly abbreviated TwB.

1 twatabyte = 1^27 bytes = 1,000,000,000,000,000,000,000,000,000 bytes.
At the rate windows developers are pissing memory up the wall, it'll take a fucking twatabyte of RAM to run windows in 10 years!
by Monkey69 October 8, 2005
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