It come from the day of steamers traveling to the far east from Britain passing by Cape town. The leg Cape Town to the far east was in hot weathers and the ship had the starboard side always facing south. The cabins would get very hot on that side so a port cabin on the outbound jurney was preferable. The reverse applied to the homebound jurney. Hence the most expensive tickets where those: Port Outbound Starboard Homebound, simply marked as P.O.S.H.
Today is is sinonimous of expensive, high class, etc, although should mean Chavvy after POSH spice adopted it.
by marco~~ October 3, 2006

abbreviation for post hospital. usually a term used for people who went into a mental hospital. usually called posh appointment
social worker: you will have a posh appointment to create a safety plan in order to decrease the likelihood of you coming back to a mental hospital.
by rck111 October 10, 2019

by Turkey May 6, 2005

Ususally posh means sophisticated, or snobby... or something like that, but we small towners use it to mean:
Piece Of SHit
Piece Of SHit
by BarbieChik December 28, 2005

by http://pinstack.blogpot.com/ December 28, 2005

by Random Kid May 31, 2006
