one of an English breed of strong, stocky, muscular dogs having a broad skull and a smooth coat, in combinations of red, white, black, or blue, originally raised for bullbaiting and later dogfighting, but now bred as a companion dog.
Origin
1935-40
British Dictionary definitions for Staffordshire bull terrier
Staffordshire bull terrier
noun
1.
a breed of smooth-coated terrier with a stocky frame and generally a pied or brindled coat See also bull terrier