The exact origin of this clip is not documented, so its life online is defined by the phrase itself rather than a known film or show. The words to nejedu are widely understood by Czech speakers as a firm refusal to go along with something, which helped the short recording circulate as a reaction sound on soundboards and in edited videos. Its brevity keeps it reusable, and creators return to it whenever a scene needs an instant, language specific no without a long setup or punchline afterward.