or poster boy; poster girl
( poster children)
1.
If someone is a poster child for a particular cause, characteristic, or activity, they are seen as a very good or typical example of it. ( mainly AM )
Zidane has become the poster child for a whole generation of French-born youths of North African extraction...
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2.
A poster child is a young man or woman who appears on an advertising poster. ( mainly AM )
She went out with a Calvin Klein poster boy...
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