The phrase "to walk the dog" means to take a regular, usually daily, exercise routine. This can refer to taking a stroll with one's pet dog or simply going for a walk as part of an exercise regimen.
Sentences with «to walk the dog»
We recommend using a leash when walking your dog in the wheelchair. (wheelchairsfordogs.com)
This is the second part of my tutorial on walking your dog on a loose leash. (dogtrainingpost.com)
There's also always an element of worry when walking the dog at night, whether on city streets or country roads. (shop.akc.org)