He has never been one to 'let the grass grow under his feet'. [=he has never been slow about doing things; he gets things done quickly]
The young candidate hoped to gather votes at the 'grassroots' level in his own neighborhood.
I'm not ready to be 'put out to grass' [='put out to pasture'] just yet.
(..) - My brother ain't no joke! - Who, Jerry? You bring his big ass up here, he's gonna be huffing and puffing before he can squeeze out of that car! You back out on my grass, you're gonna be in big trouble! You tell Jerry to come see me. I'll give him some pecan pie. Hey! (..)2014 Transformers: Age of Extinction