Oops, I’m sorry. I left out the source... http://blogs.scientificamerican.com/observations/what-is-the-largest-number-video/ by Eliene Augenbraun, published on February 26, 2016.
A redhead tells her blonde sister,
“I slept with a Brazilian last night”
The sister says,
“OMG you slut! How many is a Brazilian???”