Posh
The word posh means wealthy, well off, loaded, or fancy. The origin of this word derives from an old Romany Gypsy slang word for pennies, i.e. if you’ve a lot of pennies you’re well to do, rich, etc. It’s a fluid word like most British slang, when used in criticism it usually has a derogatory meaning. When used with close friends, it has a lighthearted tone.
“They must be quite posh to have sent her children to Eton School.”

“Look at you, you’re all poshed up for the exhibition opening!”
Donated by Mi Zhang