from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A photograph, printed in a magazine or other publication, of a sexually attractive person (often nude or provocatively dressed), and intended to be removed and pinned up on a wall.
- n. The person so depicted.
- n. figurehead, person who represents an idea, cause etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a very pretty girl who works as a photographer's model
From pin up, as such a photograph is often removed from the publication in which it is printed and pinned up on a wall. (Wiktionary)