I saw a documentary some time ago about a ships crew from one State in the USA, trhe accents were almost musical and they tried to recruit all crew from the same state, I cannot recall were it was but the accents were quite unique and I would never have identified them as American, can anyone enlighten me, I think it was either a large container ship or an ice breaker but had a substantial crew.
Just did a bit of digging and found out that 'swy' is the game of two up played by Aus servicemen in the past and was also a two shilling coin, apparently swy comes from the German Zwie for two.
Pre decimal coins had slang terms like zak and deener (6p and one shilling) but I had never heard if swy.