Chinese Whispers, in British English, would be broadly recognised as a game that children play where the starting person whispers a word or phrase to another person. This is in turn whispered to another person. By chaining these together you will find that after several attempts the phrase has changed dramatically.
The wikipedia definition seems to have a similar definition. There is also an example of this in this classic episode of The Simpsons.
It is also a useful metaphor in business where a process has many steps, has many people involved, and the original message becomes confused.
However the term seems needlessly nationally dependent and I would like to avoid using it in particular.
In US English this game seems to be sometimes referred to as Telephone, however anecdotally in British English this name would not be widely recognised and potentially contextually confusing.
I am looking for a word, term or phrase that is similar in meaning to the metaphorical usage of the game.