Irish-language rap trio Kneecap posts a “Slán Keir” message on social media after Sir Keir Starmer announces he is stepping down as UK prime minister. Multiple outlets report the group’s post appears within hours of Starmer’s resignation announcement. The phrase “Slán Keir” is presented as a farewell jibe directed at Starmer, using Irish-language wording. Across the reports, Kneecap’s reaction is the central development: the group communicates publicly on social platforms rather than through formal statements or legal actions. The coverage focuses on the timing and the content of the message, noting that it follows Starmer’s resignation as prime minister. No sources provide additional verified details in the supplied excerpts beyond the social media response and the fact that Starmer’s resignation triggers the reaction. The reports characterize the post as pointed or farewell in tone, but they consistently attribute it to Kneecap’s own social media activity shortly after Starmer announces he will leave the role.