The term 'Tool for the Grim Reaper' is referring to a scythe, which is a long-handled tool with a curved blade at the end used for cutting grass, grain, or other plants. It is often associated with the Grim Reaper, a figure in folklore who is responsible for collecting the souls of the dead. The scythe is symbolic of death and mortality, as it is used to cut down plants and crops, representing the end of life.