or prep·pie Informal
- A student or former student of a preparatory school.
- A person whose manner and dress are deemed typical of traditional preparatory schools.
Origin of preppyprep(aratory school) + –y1.
(comparative preppier or more preppy, superlative preppiest or most preppy)
- relating to things (such as clothing) that are typical of students at prep schools
- A student of a prep school. [from mid 20th c.]
prep +"Ž -y, with a doubling of the p to ensure proper pronunciation.