People pretending to (or think they are) high class and but they're really not (or don't realize they aren't.)

Aspiring to be a higher class than one is. Derived from bourgeois - meaning middle/upper class, traditionally despised by communists.

adj.

Anything that is percieved as "upscale" from a blue-collar point of view. 'Bougie' (pronounced boo'-she) is a hacked truncation of the word Bourgeoisie, which refers to the middle-class in Europe, but refers to a more affluent class level in the United States.

From Wikipedia.org:
In the United States, which lacks strict social classes, Bourgeoisie is sometimes used to refer to those seen as being upper class.

Adjective meaning extravagent, often to the point of snobbery. Usually used in relation to the conspicuous consumption of the urban upper-middle class. Dervived from "bourgeoisie"

bougie. (slang) - A derisive term for transparently or suspiciously ostentatious behavior of a lower- or middle-class person. A shortened form of "bourgeois."

adj.

Anything that is percieved as "upscale" from a blue-collar point of view. 'Bougie' (pronounced boo'-she) is a hacked truncation of the word Bourgeoisie, which refers to the middle-class in Europe, but refers to a more affluent class level in the United States.

From Wikipedia.org:
In the United States, which lacks strict social classes, Bourgeoisie is sometimes used to refer to those seen as being upper class.

high class, or rich girl. maybe classy, or someone who values designer brands.