It is frequently used as a reaction file to mock someone asking a basic question or to "trap" people into watching a nonsensical video. Technical Context of MP4 Files
Be cautious when downloading files with "meme" names from unknown sources, as MP4 files can occasionally be used to hide malicious code via steganography. tutorialomglmfao.mp4
Often starts with a legitimate-looking tutorial screen (e.g., a Windows desktop or a Minecraft launcher) before abruptly cutting to a loud, distorted meme, a "troll" face, or a confusingly edited sequence. It is frequently used as a reaction file
If you are actually looking for how to create or manage such a video file: a "troll" face
You can convert various video formats to MP4 using tools like VLC Media Player or Handbrake .