[n] a sturdy thickset short-haired breed with a large head and strong undershot lower jaw; developed originally in England for bull baiting
[adj] stubbornly unyielding; "dogged persistence"; "dour determination"; "the most vocal and pertinacious of all the critics"; "a mind not gifted to discover truth but tenacious to hold it"- T.S.Eliot; "men tenacious of opinion"
[adj] resembling or pertaining to a bulldog; "A bulldog appearance"
[v] throw a steer by seizing the horns and twisting the neck, as in a rodeo
[v] attack viciously and ferociously