poshed Definition

posh (colloq)
adj

1. High-quality, expensive, smart or stylish.

Thesaurus: luxurious, sumptuous, lavish, opulent, deluxe, grand, classy, exclusive, select, ritzy, swanky (slang), stylish, smart, high-class, upper-class; Antonym: cheap, inferior.
2. Upper-class.

adverb

1. In a way associated with the upper class.

Example: Bert talks posh when he's on the telephone

verb

poshed, poshing
1. To smarten it up.

Form: posh something up (always)

Etymology: 20c: popularly thought to be an acronym of port outward starboard home, which was the most desirable position of cabins when sailing to and from the East, but more likely perhaps to be related to obsolete posh a dandy.