Tail-wagger is a term used to describe dogs who love to wag their tails. This term can be replaced with various synonyms such as wag-tail, tail-wiggle, tail-thumper, and tail-beater. Another synonym that can be used is a dog with a happy tail, which refers to dogs who wag their tails when they are feeling excited or happy. Additionally, tail-swisher, tail-flapper, tail-shaker, and tail-dancer are synonyms used to describe these joyous dogs. A tail-wagger is a lovable member of the family, and these synonyms illustrate the affection and delight they bring to our lives.