To throw on loosely; to put on like a scarf.
To dress with a scarf, or as with a scarf; to cover with a loose wrapping.
To shape by grinding.
To form a scarf on the end or edge of, as for a joint in timber, forming a "V" groove for welding adjacent metal plates, metal rods, etc.
To unite, as two pieces of timber or metal, by a scarf joint.
To eat very quickly.
You sure scarfed that pizza.