put someone or something out to grass
put (someone or something) out to grass
1. Of an animal, to give it access to a grassy area to graze. Tommy should be back in a minute—he's just putting the cattle out to grass.
2. Of a person, to force, coerce, or pressure them into retiring. 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 grass.
3. Of a piece of equipment, to retire it from use. I got through my entire graduate degree on this clunky old laptop, but I think it's finally time to put it out to grass.