David de Gea built a reputation as one of the Premier League's most spectacular shot-stoppers during his long spell at Manchester United, and fans often turned that reputation into hyperbolic praise. The Titanic comparison is part of that fan language, taking a brilliant save and inflating it into a disaster-movie rescue. Short clips built around the line circulate in football edits, reaction videos and meme compilations, where the joke needs no explanation for supporters who already know the keeper's highlight reels. It survives because every new great save gives the old punchline a fresh excuse.