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A large number, equal to the entire GDP or population of Brazil.
Donald Rumsfeld is giving the president his daily briefing. He concludes by saying: "Yesterday, 3 Brazilian soldiers were killed."

"OH NO!" the President exclaims. "That's terrible!"

His staff sits stunned at this display of emotion, nervously watching as the President sits, head in hands.

Finally, the President looks up and asks, "How many is a brazillion?"
by moraviapils February 01, 2009
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In computer programming slang when using hexadecimal arithmetic, a number followed by 7 zero's, typically used to refer to a range of memory addresses. Thus "1 Brazillion", or 10000000 in hexadecimal, equals 268,435,456.

More loosely, any time only the upper digits are given of a hexadecimal address, "brazillion" means the the rest of the 8 digits are zero or are not important.
Does the data memory start at at 8 brazillion or 82 brazillion? (80000000 or 82000000)
by RenSeven December 05, 2009
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a very large number; indescribable by regular numeralogical values such a million or billion. can also be used to describe a large expanse of time
"man i had about a brazillion marshmallow peeps, and i think im gunna puke"
"man, ive been waiting here for you about a brazillion years, jeez
by olives and umbrella's June 22, 2005
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As of July 8th, 2014 also used to be for number 7, the amount of goals scored by Germany against Brazil in the World Cup
by St3aksandwich July 09, 2014
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