The phrase não vai dar is everyday Brazilian Portuguese for saying something will not work, will not be possible or will not be enough. As a short voice clip credited to Dava Jonas, it circulates on soundboards and in edited videos where a two second reaction is more useful than a long explanation. Its popularity comes from how ordinary the wording is, so viewers understand it instantly even out of context, and creators can reuse it for failed plans, refusals, shortages and moments when effort clearly will not change the outcome.