Anjay comes from Indonesian online slang, used as a loose exclamation of surprise, admiration or disbelief, similar to saying wow or no way in casual conversation. The Brayn version circulates as a short soundboard clip, where the stretched, shouted delivery turned a common slang word into a reusable meme reaction. It spread through gaming edits, short vertical videos and chat soundboards, especially in Southeast Asian meme communities, and remains popular because the shout is instantly recognisable even without context and fits almost any over-the-top moment.