A "tail wagger" is a friendly term that refers to a well-behaved and enthusiastic dog that loves to wag its tail. However, there are many other words and phrases that can be used in place of this term. For example, the phrase "happy-go-lucky" suggests a lightheartedness and carefree nature, while "bouncy" implies energy and playfulness. "Furry friend" is a more general term that can be used to refer to any type of pet, while "pup" and "canine" are more specific. No matter which synonym you choose, it's clear that these words all share a common theme: a love and appreciation for our furry companions.