fop

FOP or fop may refer to:

• Feature-oriented programming, in computer science, software product lines
• Feature-oriented positioning, in scanning microscopy
• Fibrodysplasia ossificans progressiva, a connective tissue disease
• Formatting Objects Processor (or Apache FOP), a Java application that converts XSL Formatting Objects (XSL-FO) files to other formats

Fop became a pejorative term for a foolish man excessively concerned with his appearance and clothes in 17th-century England. Some of the very many similar alternative terms are: "coxcomb", fribble, "popinjay" (meaning "parrot"), fashion-monger, and "ninny". "Macaroni" was another term, of the 18th century, more specifically concerned with fashion.