tenderloin
/ˈtendəlɔɪn/noun
1
- mass noun the tenderest part of a loin of beef, pork, etc., taken from under the short ribs in the hindquarters（牛、猪等的）背骨以下腰部内侧嫩肉, 里脊肉, 嫩腰肉。
1.1
- US the undercut of a sirloin〈美〉牛腰部软肉; 牛里脊。
2
- N. Amer. informal a district of a city where vice and corruption are prominent〈北美, 非正式〉（城市中罪恶和腐败蔓延的）油水区, 风化堕落之地。
- ORIGIN: late 19th cent.: originally a term applied to a district of New York, seen as a 'choice' assignment by police because of the bribes offered to them to turn a blind eye.