The term 'Pigskin Pass' is a football-related phrase that refers to a SPIRAL pass, which is a type of pass thrown by a quarterback in American football. A SPIRAL pass is thrown with a tight spin, allowing it to travel farther and more accurately than a regular pass. The term 'pigskin pass' is derived from the fact that the ball used in American football is made of leather, which is commonly referred to as 'pig skin.'