The term "eight balls" is commonly used in pool and billiards to refer to the black, numbered 8 ball. However, there are several synonyms that can be used to refer to this iconic pool ball in a more creative or playful way. Some common synonyms include "the black ball", "the eight", "the cookie", and "the snowball". Other options include "the death ball", "the last leg", "the big guy", and "the finale". No matter which synonym you choose, the importance of the 8 ball in a game of pool or billiards cannot be ignored.