This is because the first ever football was made out of pigskin.
The first football was made out of pigskin
The term pigskin refers to football since the first footballs were made from pig skin. For example, tossing the pigskin.
AnswerThe first sports balls were made with leather or pigskin.
Back then it was made of pigskin and people called "tossing around the ol' pigskin." But today it is made of leather.
In the sport of American football, the balls were first made from inflated pig bladder which was then put in a leather cover. The US started to use the slang-term, pigskin.
In the sport of football, the slang-term 'pigskin' is used. This is due to the fact that the first balls were made out of natural materials, such as inflated pig bladder.
pigskin
no
Not todays footballs, however in the early ages of football, the ball was made of pigskin
a football
uh... the skin of a pig?...