Get rekt comes from online gaming slang, where rekt is a playful misspelling of wrecked, meaning completely beaten or embarrassed. The phrase spread through multiplayer lobbies, forums and meme edits as a short taunt after a one sided win. This version, credited to BrickyOrchid8, compresses that idea into a two second vocal burst ending in a strained grunt. It stays popular because it needs no context, works muted as a caption and fits shooters, racing games, sports fails and reaction videos equally well.