The name refers to RMS Titanic, the British ocean liner that sank on its maiden voyage in 1912, and to the hugely popular 1997 film that retold its story for a global audience. Because that story is so widely known, even a brief Titanic sound instantly suggests romance, luxury and looming disaster without any explanation. Online, creators reuse it as shorthand for something grand going wrong, which keeps it recognisable across memes, reaction videos and dramatic edits years after the film became a cultural touchstone.