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.
(..) Or his father will fire your father. What's Daddy gonna do? Sue me? What is going on? The next person who talks will fail this course. I kid you not. - This grass spider... - Let's go. ...hunts using reflexes with nerve-conduction velocity so fast... ...that some researchers believe (..)2002 Spider-Man