Definition from Wiktionary, the free dictionary
- (idiomatic) One who is a prototypical or quintessential example of something.
- He's a poster child for militant vegetarianism.
2005, Susan Cunningham, “Poster Child”, in Unwrapping the Sandwich Generation. Life Vignettes about Seniors & Their Adult Boomer Children, Morgan James Publishing, ISBN 9781933596006, pages 175:
- I think he smile could have opened the door by itself. It seemed to have a life of it’s[sic] own with snow-white teeth below sparkling blue eyes. Its owner could be the poster child for the expression “grinning from ear to ear.”
2008, Susan B. Neuman, “Changing the Odds though After-School Programs”, in Changing the Odds for Children at Risk: Seven Essentail Principles of Educations Programs that Break the Cycle of Poverty, ABC-CLIO, ISBN 9780313362224, pages 169:
- A visit to Adventure Island–an after-school program developed by Robert Slavin and Nancy Madden, professors at Johns Hospkins University and creators of Success for All, a comprehensive school reform program practiced in hundreds of schools accross the country–could be the poster child for what some might call the academic approach.