There is no widely documented original source for this rainbow energy blast, and it circulates mainly as a short, user-shared sound effect rather than a clip from a named film or show. Its appeal comes from that flexibility: creators can borrow the bright, magical blast for almost any over-the-top moment without needing viewers to recognise a specific reference. On meme and soundboard sites it sits alongside other cartoon impact and pew-style laser blast sounds, and it keeps getting reused because it instantly signals fun, exaggerated energy in a few seconds.