Flamingo, the online name of Roblox creator Albert Aretz, built a large audience with fast, sarcastic Roblox videos, and his short vocal reactions became easy to lift into soundboards and edits. The single letter E fits that style perfectly because it is instantly recognisable, takes almost no time, and works without any context. As Roblox clips and meme edits spread across YouTube, TikTok and Discord, the sound travelled with them, becoming a shorthand for confusion, boredom or a joke that deliberately goes nowhere.