Pig is a fast reaction game with cards, where everyone passes cards round at the same time until someone has four alike. It is also known as Spoons, where you grab a spoon from the middle of the table instead of touching your nose – and there is one spoon too few. The letters P-I-G work as lives, like H-O-R-S-E in basketball. It is a folk game with no known inventor.
Sources: kreatit.dk – Gris · Spoons (card game)