The line comes from the orbit of Cristina Fernández de Kirchner, who served as president of Argentina from 2007 to 2015 and later as vice president. 'No arrugar' is classic Argentine slang for not backing down under pressure, and CFK's supporters turned the phrase into a badge of loyalty during years of fierce political debate. Short clips of her most quotable lines circulate widely on WhatsApp and meme soundboards, where this one survives as a compact way to praise defiance and mock anyone who folds.