An enclosed area for domesticated dogs to play, frolic, and socialize with other dogs, typically without a leash or supervision.
2012, Pamela Redmond,Rabid: Are You Crazy About Your Dog or Just Crazy?, page114:
And the new dogcentric dating websites such as AnimalAttraction.com or DateMyPet.com make it easier than hanging out in thedog park to meet the right dog owner.