Top Definition
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.
Hey, look at the pretty lassie dog.
by Willoe June 20, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×