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uber big number larger than trillion, also used in refrence to ghetto rich, as in "fabillion dollers"
"Damn bitch! take your ho-boots off, this rug coss me a fabillion dollers
by kevino April 18, 2005
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The largest number ever other than infinity.

used to describe something in an insane amount.

theres no 2 fabillion or 3 fabillion just a fabillion.
you: how much did that car cost?
friend: a Fabillion

by kgun123 October 20, 2011
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