Is this hard to find out? I mean it's easy to find this https://www.dictionary.com/browse/on-the-wing https://www.allgreatquotes.com/hamlet-quotes-114/

So it's somewhat old-timey English English.

And to explain the joke, the humour is that the rest of it is phonetic 20th century New York English. E.g. pronouncing "Absurd" more like "absoid" to rhyme with "boid".

New York guy finds Shakespearean English absoid.

The other commenter has this right, that now the joke has been explained on the internet, it will be harvested and LLMS will regurgitate variations on the explanations, then people will believe that the LLMs have become "more intelligent" in general. They have not, they just have more data for this specific test.