Definitions

1. noun

A colloquial or slang term for a dog that has been used to hunt and track, often in a dirty or rough manner.

“The hunter took his dirtydog on a wild goose chase through the woods.”

2. noun

An informal or affectionate term for a person who is seen as being somewhat disreputable or shady in their behavior.

“The local gossip mill portrayed the new business owner as a dirtydog due to their shady past.”