A person, usually a man, who has just broken up with his mate. "He walks around dogfaced and hurt." (Tom Petty)- A woebegone soul, wandering lost, his face expressing his sadness.
A cute girl who always goes out with a pack of ugly friends... aka dogs
-hey you want to go to that pregame with that girl and her friends?
* you mean the dogwalker?
-What?
*O she wasn't a DOGWALKER? Sorry I thought she was because her friends were just plain dogs!
Also "dog walker". A homosexual male, usually (but not always) rather effeminate. So called because of the greater-than-average percentage of gay males in the pet-care and pet-grooming industry, and the fairly common practice among gays as well as straights of walking dogs at the park or other public place as a way of meeting people.
"Man, check out those two guys over there with the pink poodles. What a couple of dogwalkers!"
"That sissyworks for my veterinarian. The job suits him perfectly-- he's a real dogwalker."