What does POSH stand for?

POSH stands for "Port Out, Starboard Home" in nautical terminology. Posh is a word of unknown derivation but there is no evidence that it ever stood for the custom of a Steamship line (usually P&O) stamping tickets POSH to ensure a shaded journey to and from India. There are no examples of Acromyms before the 20th Century the word posh is older its possible derivation is from the Romany cant word for money.