A trend that started at a localuniversity, where a roomate and a gay friend, violate and anally rape a second roomate, while the third roomate is not in town.
"Hey lets rape the roomate, since he has no witnesses; it will be a wu pi pi."
When on hearing the sound of the number π, an autistic person or idiot savant thinks of a slice of a cake or pizza instead, or equates either word for something else that is unmistakably alien or paranormal.
Just as the man who mixed up his job for his life, Prof. Paulos, who mildly suffers from schizophrenia, occasionally sounds like the man who mistook pi for pie.