The twin brother of the fictional cowboy hero, Hopalong Cassidy, created in the 1930s, who was also famous for his good deeds and who became the first X-rated porn cowboy and was therefore the black sheep of their fictional family.
Fuckalong Cassidy also had a wooden leg like his brother but it did not preclude him from extended and impressive sexual performances with the barely clad damsels in distress he was fond of rescuing.