kickback
/ˈkɪkbæk/noun
1
- a sudden forceful recoil反冲, 后坐力：
the kickback from the gun punches your shoulder.
枪的后坐力冲击你的肩膀。
2
- informal a payment made to someone who has facilitated a transaction or appointment, especially illicitly〈非正式〉（尤指非法的）回扣。