A poptart refers to a person whos musical, fashion and other tastes is dependant on what is
popular at the time.
For example people whom only listen to Top40, throw out their CD's when they aren't in anymore and rate their clothes by which famous people wear similar styles not on what they
like.
People who only
like music made in the last 5 years are poptarts, also known as posers.
That
guy dresses like a
Goth but he listens to
Simple Plan, what a poptart.
That girl only listens to INXS because they had a show on MTV, she is a poptart.
EMINEMs fans are all poptarts.