R2-D2 is the astromech droid from the Star Wars films, first introduced in the original 1977 movie, where his expressive beeps and whistles became a signature part of the character despite having no spoken dialogue. Fans began sharing his sounds on early soundboards and video sites, and short reaction clips like this scream spread through memes, gaming videos and edits. It remains popular because the sound is instantly recognisable, works without context, and adds comic panic to almost any failed moment.