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Meaning of biggie

big•gie

Pronunciation: (big'ē), [key]
— n. Slang.
  1. an important, influential, or prominent person; big shot; bigwig.
  2. something that is very large, important, impressive, or successful: a merger of two corporate biggies; a movie that was this year's box-office biggie.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.