Used when there it no logically based argument available and short, meme-ish comeback is all one has to give, based mainly on one's own emotional, subjective point of view.
Intelligent person: *Gives a logically based conclusion.*
You: "No u."
Intelligent person: *Goes to minds their own business, letting you to do your own mistakes.*
Something grandiose with a spectacular budget and/or promotion. It has claimed to be to be "unsinkable," only to fail in an equally spectacular fashion, proving them wrong.
Origin and reference: White Star Line's RMS Titanic disaster in 1912.
TV series promoters: "Our multi million series is a triumph!"
Annoyed viewers: "Triumph, over what? It was more like a Titanic."