put someone out to pasture
US /pʊt ˈsʌmˌwʌn aʊt tə ˈpæstʃər/
UK /pʊt ˈsʌmˌwʌn aʊt tə ˈpæstʃər/

1.
让某人退休, 让某人赋闲
to force someone to retire from their job or activity, especially due to old age or declining ability
:
•
After 30 years of service, the company decided to put him out to pasture.
服务30年后,公司决定让他退休。
•
The coach was worried the team would try to put him out to pasture if they lost too many games.
教练担心如果他们输掉太多比赛,球队会试图让他退休。