put somebody out to pasture
put (someone or something) out to pasture
1. To force, coerce, or pressure someone into retiring from their work. The CEO shaped the company into what it is today, but she's getting on in years and the board of directors has decided to put her out to pasture.
2. To retire a piece of equipment from use or replace it with something newer. I got through my entire graduate degree on this clunky old laptop, but I think it's finally time to put it out to pasture.