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.
(..) - That's right, we're just friends. - I love it. It's like the 's in here. That was a better time. Just sex. A little grass, a little glue... Not during pregnancy. Well, not during the final trimester. But no complications. It's great! Okay, well, that's technically, I guess, what this is. (..)2011 Friends with Benefits