It is a classic comedy movie. Along the line of Caddyshack, Young Frankenstein and Blazzing Saddles.
All of us could quote multiple lines from Monty Python and the Holy Grail because it was genuinely FUNNY.
Whether it is “bring out your dead”, “she turned me into a newt”, “I got better”, “what is the velocity of a laden sparrow”, “I’m being oppressed” , etc.
No different than if anyone posts something about BRAINS, someone will post “Abby Something” in reference to Igor’s response from Young Frankenstein.
The thing is they just can not make movies like this anymore in the politically correct Hollywood.
Back then, some guys had the entire movie memorized, and some girls would quote from it, too. To this day, we still do. And other Monty Python movies and skits were just as quotable.