The term 'SUPER DELUXE' is often used to describe something that is of the highest quality and luxury. It can be used to describe a product, service, or experience that is of the utmost excellence. The term 'POSH' is an acronym for 'Port Out, Starboard Home, ' which was a phrase used by British travelers in the 19th century to describe the most luxurious cabins on ships. Thus, the term 'POSH' is often used to describe something that is luxurious and of the highest quality.