Definition of poster child in English:

poster child

Line breaks: pos¦ter child
(or poster boy or poster girl)


North American
A person or thing that epitomizes or represents a specified quality, cause, etc. the antiglobalization movement’s poster child she’s the poster child for cosmetic surgery the poster child of gluten-free grains, quinoa is a wonderful light, fluffy grain the ever-grinning poster boy for the coastal good life
More example sentences
  • We made him a poster boy for bad behavior, put him all over newspapers and milk cartons, and now we should go out and get him.
  • Someone is sure to nail you against the wall and call you the poster boy for Bloggers Gone Bad if you do.
  • Were there an Over-Clickers Anonymous, I could be their poster child.


1930s: from the use in print advertisements of good-looking young people and appealing children.

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