Essa coca é fanta is a long standing Brazilian slang expression built on the contrast between two familiar soft drinks, Coke and orange flavoured Fanta. Online, the phrase moved beyond everyday speech into memes, short videos and soundboards, where the audio is shared on its own as a reaction. Its popularity comes from how widely it is understood in Portuguese speaking communities and how quickly it signals a joke about appearances. The clip keeps circulating because it works without context and fits many everyday teasing situations.