big enchilada 或 Big Enchilada

big-enchilada的词性：
n.Slang （名词）【俚语】

1. One who is in charge:
负责的人：

“[the President's] big enchilada on both foreign and domestic policy” (Mary McGrory)
“[总统的] 外务和内务政策的负责人” (玛丽·麦格罗里)

2. Something of the highest value or importance:
最高价值或最重要的事：

“[The team] won the big enchilada in 1980 and 1982” (Scott Ostler)
“[该队] 赢得了1980和1982年的最重要的比赛” (斯科特·奥斯勒)

big-enchilada的词源：

3. On the model of such expressions as
仿照措辞，如

4. big cheese
big cheese