cool hunter
noun/ˈkuːl hʌntə(r)/
/ˈkuːl hʌntər/
(informal, especially North American English)- a person who is employed by a company to observe and talk to young people in order to find out what products and styles are becoming fashionable with them
- Corporations hire cool hunters to infiltrate teen cultures and find out what appeals to teenagers.
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cool hunter