The line comes from Titanic from 1997, where the elderly Rose looks back on the ship's sinking and remarks that 84 years have passed since that night. In the Portuguese version the phrase is heard as foi há 84 anos, which is why it circulates under that title on soundboards. Online, creators lifted the reflective delivery out of its dramatic context and turned it into shorthand for anything that feels ancient, from delayed replies to long-running series, keeping it popular because the exaggeration works in almost any wait.