paper,sissors,rock

Child game played by 2 people, You each have to hide youe hand behind your back and count 1,2,3 and then display what object you have chossen. i.e.

Paper
Sissors
Rock

Paper beats rock but not sissors, Sissors beats paper but not rock, rock beats sissors but not paper

also referred to as roshambo..Which is an name and the orginal name for it but this now means something else in American slang