A. A "spigot" is the term used for a plastic, non threaded, male end of a fitting that is the same size as the pipe used to fit into the female or hub end of the same pipe sized fitting. The spigot end will fit into (inside) a "push-fit" fitting, such as a tee or coupling or elbow. This spigot end is used in place of pipe to help reduce the need to buy extra fittings.