When something or someone, resembles the quality of most preppy people. Acts like the common preppy stereotype, is so preppy you can't take it, acts like barbie, or is just a plain old jerk.
People who speak like this: OH MY GAWD, or OMG, etc, etc. People who dress completely in Hollister and Aeropostale to a point where they have no souls.

How to use:
I can't stand Natalie, she is so infectiously preppy.
by TheRavenKing May 23, 2009
5 Words related to Infectiously Preppy

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