It is old British upper-class University slang. Generally avoided by the élite since the 1930's. Formerly pronounced push or poosh. Not related to Port Out Starboard Home. See Partridge's Dictionary of Slang.
The term posh derives from the time when passengers on liners would have cabins on the port side of a shim on the way out to India,this being the cooler side of the ship and the starboard side on the way back home which was then the cooler side....thus Port out...starboard home..as only first class passengers could afford this luxury it coined the term Posh. It has since come to mean anyone with money.
It is a slang term for 'Stuck Up' or a Posh person !
Mainly to India and the Far East
Posh means that you come from a well-off established amily, are well-educated, and has snobbish connotations. For example, my father might be considered posh, because he went to Charterhouse public school, then Oxford University, as well as speaking with 'Received Pronunciation'. In the UK, working-class youths often mock those higher in class with the insult 'posh tw*t'.
Ball sack IS a slang term. See the related question for the whole list.
Highfalutin
If you want to be posh , then you will have to talk sentences posh and to end with a full stop.
Someone who is very posh would be fashionable and elegant. Someone who is classy is posh.
yes, its a very posh word and nobody but posh people say it anymore.
The anagrams are hops and posh.
Posh can be translated as:nobelschickvornehmfein
Pish Posh was created in 2006.