[RedMDer]

A gastric function or farther south?

[moose07]

It came from a mistake during the filming of a 'movie' using a real Royal navy crew on a sailing ship.
The Director needed noise for the background effect ,so the crew where instructed to use a random word.
This word was provided by the Petty officer in charge....'Rhubarb'...was the word.
However this came into contact with the British Military mind.
In perfect synchronisation the crew bellowed at the top of their voices 'Rhubarb, Rhubarb,,,,'.
Since that date rubbishing an issue loudly and in public by a crowd has been known as 'Rhubarbing', in certain circles. :)