Prole drift, short for proletarian drift, is the trend in which class and social signifiers of membership in the lower classes are adopted by the middle and upper classes. The phenomenon was discussed in a chapter of Paul Fussell's 1983 book Class: a Guide Through the American Status System. Fussell saw prole drift as a general tendency of the culture towards proletarianization.
More recently, some observers[who?] have noted a related phenomenon in which luxury goods have been adopted by the lower and working classes. Examples include sales of premium coffee, Burberry clothing or Coach Inc. handbags to lower-class people. In the UK, BMW cars (particularly the 3 series) have seen this phenomenon, in some instances the 3 series outselling more mainstream cars such as the Ford Mondeo and Vauxhall Vectra; personalised number plates are another example.