What is a weed wacker?
A weed wacker is a stringed trimmer that is powered by a better or by gasoline.  The string spins at a very fast circular velocity for cutting.  It is used for cutting weeds, grass and making the edge of lawns look uniform.  Its important to where proper safety equipment when using a weed wacker to prevent injury to your legs from spinning plastic string.
Instruction: What is a weed wacker?
Context: 
Response: A weed wacker is a stringed trimmer that is powered by a better or by gasoline.  The string spins at a very fast circular velocity for cutting.  It is used for cutting weeds, grass and making the edge of lawns look uniform.  Its important to where proper safety equipment when using a weed wacker to prevent injury to your legs from spinning plastic string.