Iron Man was created by Marvel Comics and became a global film icon with the Marvel Cinematic Universe starting in 2008. His suit's repulsor blasters, fired from the palms, became one of the character's signature weapons, with a distinctive charging and firing sound used across the movies. Clips of that blast were shared on soundboards and in fan edits because it is instantly recognisable. Unlike a simple cartoon pew pew effect, it carries weight and technology, so creators still use it for superhero parodies, game edits and sci-fi memes.