Boo Trend

Boo Trend works through a simple visual gag. A creator looks into the camera, crosses their eyes as hard as they can, says 'boo,' and often brings their face closer to the lens for exaggerated effect1. Posts frequently add zoom cuts, slow music, or spliced-in photos of K-pop idols making the same expression2. ENHYPEN member Sunoo in particular showed up in early edits that stitched his candid face shots next to the trend's signature pose2.

A prank layer defines much of the format. Creators convince a boyfriend, dad, or cousin to try the face with them 'on three,' record both takes, then post only the other person's embarrassing attempt while cutting their own participation out of the final video5. The twist lands when the victim realizes the premise was a setup. Tone sits somewhere between affectionate teasing and public shaming, and comment sections split along similar lines6.

A typical Boo Trend video opens with a creator facing the camera. They cross their eyes, say 'boo,' and lean in close for the punchline. For the common prank version, a creator sets up a bit with a friend or family member who has not seen the trend, asks them to copy along, then posts only the other person's take while cutting their own face from the clip7. Many posts also layer in zoomed-in photos of K-pop idols with similar expressions, with ENHYPEN's Sunoo appearing in early viral edits2.