poster boy

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

Example Sentences

John Davidson became the reluctant poster boy for Tourette's Syndrome when he was just 16 years old.

From BBC

Kelly: You must be the poster boy if your mum's at the school.

From BBC

Isak was once this side's poster boy, but the idea of the striker representing the club at a glitzy awards ceremony?

From BBC

Elsewhere, Robinson has become the poster boy for male social anxiety: the pariah who is so flummoxed by the rules of polite chitchat that he crosses the line and bursts into tears.

From Los Angeles Times

Before his disappearance from public life in 2020 - following comments at a financial conference that China's state-owned banks had a "pawn-shop mentality" - Mr Ma was the poster boy for China's tech industry.

From BBC