Can someone please explain to me preppy

Can someone please explain to me preppy. Like I guess im kinda sterotyped as it but I really dont get exactly what it is. I mean I have an idea. Someone explain please

preppy or preppie
NOUN:
Informal pl. prep-pies
A student or former student of a preparatory school.
A person whose manner and dress are deemed typical of traditional preparatory schools.

http://education.yahoo.com/reference/dictionary/entry/preppy

don't get too caught up in those labels and you might surprise everyone.

Usually "preps" in highschool come from well-off families, are in a lotta extracurriculars/clubs/sports, wear abercrombie, ae, hollister, pink (like from victoria's secret, lol), aero, lacoste, etc are usually more popular than other cliques etc.

It's not a bad thing but people use it as an insult sometimes.

how can it be an insult
like in what ways is it bad

A preppy person is someone who is classic and conservative. True preps attend some sort of private school. They don't have to have loads of money but basically all of them are at least "well-off". One can find preps shopping at store like J.Crew and Ralph Lauren because they have classic styles. Preps do own clothes from Abercrombie and American Eagle, but only certain things like sweaters and capris. They do NOT wear provocative clothing or really tight fitting jeans. Most of them are relatively smart and athletic. Their friends and family are proud of them. They are polite, but still know how to have a good time when they go out with their friends.

it means you good all the time and never takes chanses