The phrase is often used as a playful or ironic caption for photos with friends or "ugly" selfies. Que Se Mueran Los Feos
The phrase is also the title of a 1948 hardboiled detective novel by the French writer (writing under the pseudonym Vernon Sullivan), titled Et on tuera tous les affreux .
: "Que se mueran los feos, que se mueran los feos, que no quede ni uno, ni uno solo de feo." (Let the ugly ones die, let not a single one remain.)