Fragments produced by an impact

Slush

Associated with the upper classes.

“She talks with a posh accent.”

Stylish, elegant, exclusive (expensive).

“After the performance they went out to a very posh restaurant.”

(usually offensive) Snobbish, materialistic, prejudiced, under the illusion that one is better than everyone else.

“We have a right posh git moving in next door”

An exclamation expressing derision.

“1889: "The czar! Posh! I slap my fingers--I snap my fingers at him." — Rudyard Kipling, The Man Who Was”