From the French, En Vogue means what is currently
popular, the social standard &/or fashionable (
trendy, cool, da bomb, chic,
hot, hip, happening, groovy, neat, decent, epic)
In English, it's common practice to refer to something fashionable as "en vogue" or "in vogue" (meaning in the current fashion or style). To evoke a sense or flair of French chic, many use the whole French phrase—en vogue. This is unnecessary but a common way to put on airs, especially in the world of fashion.