They're teen royalty.
3 seconds sound clip from the Mean Girls (2004) movie soundboard.
You can hear this line at 00:07:32 in the Blu-ray version of the movie.
Quote context
[...]
- Yeah, I'm gonna call you Cady.
- In the name of all that is holy, will you look at Karen Smith's gym clothes?
- Of course all The Plastics are in the same gym class.
- If North Shore was Us Weekly, they would always be on the cover.
- That one there, that's Karen Smith.
- She is one of the dumbest girls you will ever meet.
- Damian sat next to her in English last year.
- She asked me how to spell orange.
[...]