Ronqueo is a Spanish word for snoring, and clips like this circulate online as animal and reaction sounds rather than as a line from a film or show. With no single famous source attached to it, the humour comes from recognition: almost everyone knows that deep, rattling noise of someone sleeping too soundly. Creators reuse it for pets, tired characters and slow moments, alongside other snore sounds, because the long ten-second length gives an edit time to build the joke before cutting away.