R2-D2 is the astromech droid from Star Wars, first introduced in the 1977 film, and his expressive beeps, whistles and screams were designed to give a non-speaking character a clear personality. The droid became one of the franchise's most recognisable figures, appearing across films, series and games, and fans have long reused his sounds in edits and memes. This scream works online because it instantly signals panic without dialogue, making it a shorthand for disaster in short videos, reaction clips and gaming moments.