Mutt? Mix? Designer Dog?

Stubby is half Border Collie and half Corgi. Is he a Mutt, mixed breed, or designer dog?

The terms "Mutt" and "Mixed Breed" tend to be used interchangeably. But which term is correct? Technically, a mixed breed dog is a dog bred from two purebred dogs of different breeds. A mutt has three or more breeds in its lineage.  That would make Stubby a "mixed breed" dog.

A designer dog is a mixed breed that is been bred on purpose. These can cost as much as purebred dogs!

These Labradoodles are mixed breeds sometimes called "Designer dogs"

I have heard of of Labradoodle puppies costing $2500! Instead of buying a high price for a "designer dog" from a breeder, it makes much more sense to get a mixed breed dog of a mix you like from an animal shelter or off Craigslist. These dogs will be much cheaper, or even free.