In One Piece, Haki is a spiritual power used by fighters, and Conqueror's Haki is its rarest form, possessed by figures with kingly ambition such as Monkey D. Luffy and Shanks. In the anime it is often paired with a distinct pressure burst and visual distortion to show enemies fainting or freezing. Fans clipped that effect from fights and confrontations and reused it across edits, battles and reaction memes, where the sound alone now signals unmatched willpower even outside its original scene.