- You may be looking for the book the whale is from.
Moby Dick was a massive white whale from the novel Moby-Dick. The Twelfth Doctor found the book boring, and bemoaned, "Honestly, shut up and get to the whale." (TV: Extremis)
The whale also existed within the Land of Fiction. When the Cybermen invaded the Land, they cyber-converted him and fitted him with torpedo tubes. (AUDIO: Legend of the Cybermen)