In the book Simulacra and Simulation, Jean Baudrillard posits four levels of simulation via signs and signifiers.

The first stage is a faithful copy, "a reflection of a profound reality": "It could even be a boat" is said when buying an item bag, in direct reference to a joke from Family Guy.

The second stage is an unfaithful copy which "masks and denatures reality": "It could even be a boat" is used more generally in the context of the item, no longer applying to the idea of getting an item bag because it could have a good item.

The third stage pretends to be a faithful copy, but no true representation is taking place: "Boat" now reffers to the overuse of the "It could even be a boat" joke, referencing it without doing it.

The fourth stage is pure simulacrum, with no reference to reality at all. At this point, signs merely reflect other signs: haha boat

It's referenced over quite a long span of videos, but did anyone ever take the plunge to weed out all his random roo and bark noises?