|Abercrombie & Fitch||or|
|Jack Wills,||or do they wear|
Where does the word (pronounced /rɑː/) come from? Wikipedia describes it as a slang term "referring to a stereotypical affluent young upper class or upper-middle class person (male or female) in the United Kingdom." OED tells us that rah is a shortening of hurrah, but does not record the meaning described by Wikipedia. Some sources say that rah is an abbreviation of 'rich a***hole'.
A video clip mocking rahs has gained some popularity recently. Watch here on youtube.