payback
noun [ C or U ] uk/ˈpeɪ.bæk/ us/ˈpeɪ.bæk/
(ADVANTAGE)
回报，收益
an advantage received from something, especially the profit from a financial investment
The payback for reorganization should be increased productivity. 重组的益处应该是生产率得到了提高。
(SOMETHING BAD)
（因为过去的错失而不得不经受目前的遭遇）偿还
something bad that is done to you because of something bad that you have done previously
The problems she was experiencing felt like payback for her past mistakes. 她正在经历的问题让人觉得是对过去失误的偿还。
Idiom
payback's a bitchidiom US informal 回报是屁话（如某人说“回报是屁话”，表示过去发生事情引起了较坏的结果）
If a person says payback's a bitch, they mean that something bad has happened as a result of something else.