The sound comes from the 1997 film Men in Black, where Agent K, played by Tommy Lee Jones, helps deliver an alien squid baby in the back of a car. The brief scene became one of the movie's most quoted oddball moments because the newborn looks completely alien but sounds like a squeaking toy. Clips of the squeaks later circulated on soundboards and in short video edits, where creators reuse them for any tiny, slimy or surprisingly cute reveal long after the film's release.