[Scoundreller]

Or “crypto” to mean anything other than math.

[function_seven]

I use "crypto" only when talking about Big Foot or a Chupacabra.

[Scoundreller]

Could also be cryptosporidium. One ill child could infect a whole pool if you swallow some pool water...

https://www.google.com/search?hl=en&q=cryptosporidium%20pool...

[jspash]

As in, something a lot of people really really believe in but... the truth is scarier than fiction!