From Longman Dictionary of Contemporary Englishthe big enchiladathe big enchiladaAmerican English informal something that is the most important or biggest of its type We’re aiming our products at the big enchilada – the home computer market. → enchilada
Examples from the Corpus
the big enchilada• The big enchilada is the U.S. Supreme Court, and we're going to go there and win.• We're aiming our products at the big enchilada - the home computer market. 