The line comes from a Hungarian television comedy sketch in which Mucsi Zoltán plays a deadpan surgeon, and fans clipped his delivery of 'A farkán keresztül!' as a standalone reaction sound. The phrase plays on the double meaning of 'farok', tail in polite Hungarian and a crude slang word, which is why the shout lands as both absurd and rude. Like Homer's shouted French catchphrase, it survives because the performance is funnier than the translation, and the two-second clip keeps circulating on soundboards as a universal 'enough' button.