A NEARLY ALMOST TRUE STORY........ ( From Bridgemeister Gibson ) 

For decades a rather over worked phrase  "  yarmouth man "  has been used to describe players regularly attending , and blighting , bridge clubs in and around the Norfolk area of England. In recognition of its popular and widespread use ,  the phrase has finally been added to the latest edition of the Bridge Players' Glossary of Terms.
Players who fit the definition of yarmouths are those  " constantly shouting at inept partners holding the insane belief that the louder they speak, the more likely these numpties will listen and take on board their criticisms ". Indeed , the first recorded incident , when this term was first coined , occurred at the 1954 Swiss pairs tournament in Norwich. A certain foul mouthed gentleman rose up from his seat to lambaste his hapless partner for a full five minutes , before two TDs were able to calm him down. At a nearby table one little old lady was heard to say " I bet you any money he's a Yarmouth man " , a description of course which then became synonymous with that dreadful kind of behaviour.