COOTIES
When I was a kid, we used to run away from each other yelling "You've got cooties!" It was a fun game, and also a cruel taunt, and a whispered slur "Oooo she's got cooties!" Nobody knew exactly what cooties were. I imagined them as some kind of creepy crawly. And it seems that the etymology is that they referred to lice. Then in 1948 a guy named William Schaper created the game. It was launched in 1949 and sold millions. It was still popular with my grandkids when they were little. Remember it? You were given a colorful plastic body shaped kind of like a beehive, and the object was to add arms and legs, head and proboscis, with numbers on the dice corresponding to the body parts. The first one to complete theirs was the winner. And then you really did have a cootie!