A spudger (or sometimes spludger) is a tool that has a wide, flat end shaped like a wedge. It is used to separate plastic components that have been set in using pressure without causing damage.
Common examples of spudger use are in the processes of replacing broken screens on smartphones and other mobile devices, as well as replacing integrated batteries. On the opposite end of this tool is usually a point or a hook depending on the task for which it is being used.
A spudger can also be a tool used for adjusting small wires or other components. This version of the tool, shown above in black, is generally found in the electronics and telecommunications industries. To avoid creating a short, spudgers are typically an insulating stick, made of either plastic or sometimes, even wood.