A collie, most commonly a rough collie.
Lassie dog is a term used by people who don't know the actual name of the dog breed, seeing as one of the most famous collies was Lassie.
Lassie dog is a term used by people who don't know the actual name of the dog breed, seeing as one of the most famous collies was Lassie.
by Willoe June 20, 2011