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.
(..) They've locked weapons on us! Red alert! Torpedo locked on us at '- ! Arm weapons! Evasive pattern delta ! We're being cut like grass. Fire all phasers! Damage report. Warp drive's been knocked out. Never seen anything like this. Weapons offline. (..)2009 Star Trek