Online, the phrase is used as a blunt shorthand for disbelief, especially in short-form video where a single dismissive line can carry an entire reaction. Creators tend to save it for moments that feel staged, edited beyond belief or too absurd to take seriously, from fake celebrity sightings to impossible gameplay and over-the-top pranks. Its appeal is its simplicity: it does not explain or argue, it just rejects the premise. That directness has kept it useful across reaction videos, meme edits and comment-style clips.