- an important or impressive person or thing: to make a big deal out of nothing;I hear he's a big deal on Wall Street now.
- (used ironically as an interjection to indicate that one considers something to be unimportant or unimpressive): So you're the mayor's cousin—big deal!
- See entry at no big deal
- an exclamation of scorn, derision, etc, used esp to belittle a claim or offer
