The phrase is everyday French slang for calling someone bad at something, and the exaggerated drawn out delivery turned this short clip into a shareable reaction sound on French speaking social feeds and soundboards. Its meaning stays clear even for viewers who do not speak French, because the tone and the stretched ending sell the mockery on their own. Short voice reactions like this travel well in gaming clips and fail compilations, where a one second verdict is faster and funnier than a written comment explaining the mistake.