poster boy

British  

noun

1. a person who appears on a poster

2. a person who typifies or represents a particular characteristic, cause, opinion, etc

   a poster girl for late motherhood

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Example Sentences

As a poster boy of world rugby, Rees-Zammit's return to the Six Nations is not only a boost for Wales, but for fans and media alike.

From BBC

With his easy charm, boyish good looks and honest interview style, not to mention his considerable talent, Hunter quickly became snooker's poster boy for the new 21st Century.

From BBC

Kyrgios said he has not given "a thought" to the possibility he could become a poster boy for misogynists ready to criticise women's sport if he beats Sabalenka.

From BBC

Makowsky calls Garfield “a poster boy for the American dream,” rising from poverty to the nation’s top office.

From Los Angeles Times

She's since won a role in the film I Swear, which tells the story of John Davidson who became the reluctant poster boy for the then little known condition in the 1980s.

From BBC