One flew east, one flew west, one flew ... where?

over the cuckoo's nest

http://allisoneames.weebly.com/the-poem.html

Vintery, mintery, cutery, corn,
Apple seed and apple thorn;
Wire, briar, limber lock,
Three geese in a flock.
One flew east,
And one flew west,
And one flew over the cuckoo's nest.

well done as usual postcards2go

It loses a bit of the significance it has in the novel, where it is part of a rhyme Chief Bromden remembers from his childhood. This detail was not included in the film, but the line retains its relevance since the story ends with two patients dead from different causes and one who escapes from the hospital. It is worth noting that the cuckoo in folklore parlance is implied as having no nest, given its custom of laying its eggs in other birds' nests.

https://en.wikipedia.org/wiki/One_Flew_Over_the_Cuckoo's_Nest_(film)