Chinese whispers (Commonwealth English) or the telephone game (American English)  is an internationally popular children's game  in which players form a line, and the first player comes up with a message and whispers it to the ear of the second person in the line. The second player repeats the message to the third player, and so on. When the last player is reached, they announce the message they heard to the entire group. The first person then compares the original message with the final version. Although the objective is to pass around the message without it becoming garbled along the way, part of the enjoyment is that, regardless, this usually ends up happening. Errors typically accumulate in the retellings, so the statement announced by the last player differs significantly from that of the first player, usually with amusing or humorous effect. Reasons for changes include anxiousness or impatience, erroneous corrections, the difficult-to-understand mechanism of whispering, and that some players may deliberately alter what is being said to guarantee a changed message by the end of the line.
The game is often played by children as a party game or on the playground. It is often invoked as a metaphor for cumulative error, especially the inaccuracies as rumours or gossip spread, or, more generally, for the unreliability of human recollection or even oral traditions.
Relevant forum threads
Re: Aṭṭhakathā and Visuddhimagga disagree?