Flash Warning TikTok Transitions emerged as a high-octane editing trend where creators use strobe effects to signal a dramatic shift in appearance, mood, or context. Usually synced to bass-heavy audio or 'phonk' music, the transition often features a 'before and after' reveal, showcasing glow-ups, cosplay transformations, or artistic shifts. While primarily a video-based phenomenon, the visual language of the 'Flash Warning' has become a recognizable meme trope used to mock overly dramatic edits or to highlight intense, flashy moments. It serves as both a literal sensory warning and a stylistic badge for modern internet subcultures.