The term TYPE OF GREASE can refer to two different types of grease. The first is AXLE grease, which is a type of lubricant used to reduce friction between moving parts in an AXLE. It is usually made from petroleum-based oils and is often used in automotive applications. The second is ELBOW grease, which is a slang term for hard work or effort. It is often used to describe the effort required to accomplish a task or goal.