Roshambo

Roshambo, ro sham bo, and other variants, is another name for rock paper scissors.  The origin of the name is unclear.  The first known use of "roshambo" as a synonym for the Rock Paper Scissors game appeared in a 1936 book titled The Handbook for Recreation Leaders, published in Oakland, California. The term was spelled "ro-sham-beau" in the book, which only adds to the confusion.