poster child
noun
a child appearing on a poster for a charitable organization.
a person or thing that exemplifies or represents: She could be a poster child for good sportsmanship.
Origin of poster child
First recorded in 1990–95
Words nearby poster child
postembryonic,
postemergence,
poster,
poster board,
poster boy,
poster child,
poster color,
poster paint,
posteriad,
posterior,
posterior ampullar nerve