The phrase kol zaq is Arabic slang used as a crude, dismissive insult, roughly telling someone to eat crap, and short clips of it being shouted have circulated as reaction audio in Arabic speaking online spaces. Its appeal online is less about a single known source than about its usefulness as a compact audio reply, shared between chats, short videos and soundboards. The one second length, harsh delivery and instant recognisability within that slang context keep it in rotation as a meme reaction long after many longer clips fade.