poster child
noun
1
: a child who has a disease and is pictured in posters to solicit funds for combating the disease
2
: a person having a public image that is identified with something (such as a cause)
Example Sentences
She was a stirring speaker and activist and soon became the poster child of the antiwar movement.
Recent Examples on the Web Inspired by paneer or egg bhurji, this tofu scramble is the poster child of budget cooking. 
Shilpa Uskokovic, Bon Appétit, 11 Aug. 2022 Evergrande is a poster child for the crisis, but the heavily indebted developer is merely the most obvious symptom of the risks building up in China’s housing market over the past decade. Jacky Wong, WSJ, 28 July 2022 Mississippi, which brought the lawsuit on which the court ruled Friday, is a poster child for official indifference to women’s and children’s health. Michael Hiltzik, Los Angeles Times, 27 June 2022 Snow leopards also occupy a special place as a poster child for the $20 billion–plus wildlife conservation industry. Ben Ayers, Outside Online, 27 July 2022 As the poster child for overtourism, Venice has long been a city of mounting lines, uncomfortable crowding and mushrooming Airbnbs which are blamed for pricing locals out of the city. Julia Buckley, CNN, 22 Apr. 2022 Consider that one of Gonzaga’s three losses to was to Alabama, which might serve as an appropriate poster child for a season in which seemingly anything could happen. New York Times, 13 Mar. 2022 The first game in the Wipeout series, which more than earned its position as an early poster child for the PS1 in 1995, was an unfocused affair. Matt Gardner, Forbes, 30 Sep. 2021 After over two years of not only virtual dates, but also two-dimensional friend hangs and—the poster child for tech fatigue—Zoom meetings, an in-person connection might be extremely appealing. Amanda Chatel, SELF, 8 July 2022 See More
Shilpa Uskokovic, Bon Appétit, 11 Aug. 2022 Evergrande is a poster child for the crisis, but the heavily indebted developer is merely the most obvious symptom of the risks building up in China’s housing market over the past decade. Jacky Wong, WSJ, 28 July 2022 Mississippi, which brought the lawsuit on which the court ruled Friday, is a poster child for official indifference to women’s and children’s health. Michael Hiltzik, Los Angeles Times, 27 June 2022 Snow leopards also occupy a special place as a poster child for the $20 billion–plus wildlife conservation industry. Ben Ayers, Outside Online, 27 July 2022 As the poster child for overtourism, Venice has long been a city of mounting lines, uncomfortable crowding and mushrooming Airbnbs which are blamed for pricing locals out of the city. Julia Buckley, CNN, 22 Apr. 2022 Consider that one of Gonzaga’s three losses to was to Alabama, which might serve as an appropriate poster child for a season in which seemingly anything could happen. New York Times, 13 Mar. 2022 The first game in the Wipeout series, which more than earned its position as an early poster child for the PS1 in 1995, was an unfocused affair. Matt Gardner, Forbes, 30 Sep. 2021 After over two years of not only virtual dates, but also two-dimensional friend hangs and—the poster child for tech fatigue—Zoom meetings, an in-person connection might be extremely appealing. Amanda Chatel, SELF, 8 July 2022 See More Word History
First Known Use
1938, in the meaning defined at sense 1