The term 'Crevice Filler' is a job description for someone who uses a SHIM, which is a thin piece of material used to fill in gaps or spaces between two objects. The SHIM is usually made of metal, wood, or plastic and is used to provide support or stability to the objects it is filling. The Crevice Filler is responsible for ensuring that the SHIM is properly placed and secured in order to provide the necessary support.