A cross-breed, can be a derogatory name for those of mixed heritage.

The mongrel is a wiley animal.

a rather unexplainable term used when you really dont like a person. marked by ugliness, rudeness, fatness, etc.

a person of mixed descent.

(noun)

Tenacity, stubborn determination, a colloquial variant of the term "doggedness" used largely in Australia and New Zealand in the context of sports.

An annoying person who never shuts the fuck up and gives people their opinion when nobody fucking wants to hear it.

One who is considered "flea infested"

Roots from the song "Who Let the Dogs Out" by the Baha Men