Red flags usually are used as warning signs in relationships and in life, but the emoji recently has become a means for people on Twitter to share objectionable actions.

Celebrities, including Dionne Warwick and Dolly Parton, began offering their own “red flags” on Twitter, according to NJ.com.

Here is a look at some of the best on Twitter from celebrities, companies and others:

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Fans celebrate in the stands after Cape Verde defeated Eswatini in a World Cup qualifying soccer match at Estádio Nacional in Praia, Cape Verde, Monday, Oct. 13, 2025, to clinch their qualification for the 2026 World Cup. (Cristiano Barbosa/AP)

Credit: AP