bigenchilada

big enchilada or Big Enchilada n. Slang

1. One who is in charge: “ [the President's] big enchilada on both foreign and domestic policy” (Mary McGrory).

2. Something of the highest value or importance: “ [The team] won the big enchilada in 1980 and 1982” (Scott Ostler).

  [On the model of such expressions as big cheese.]

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