The song's "The Walrus was Paul" lyric is both a reference to "I Am the Walrus" and Lennon saying "something nice to Paul" in response to changes in their relationship at that time.2 Later, the line was interpreted as a "clue" in the "Paul is dead" urban legend that alleged McCartney died in 1966 during the recording of Sgt. Pepper's Lonely Hearts Club Band and was replaced by a look-alike and sound-alike. Coincidentally, the line is preceded with "Well, here's another clue for you all".
Lennon was asked if there was a deeper meaning to the mysterious lyrics:
“
I threw the line in—'the Walrus was Paul'—just to confuse everybody a bit more. It could have been 'The fox terrier is Paul.' I mean, it's just a bit of poetry. I was having a laugh because there'd been so much gobbledygook about Pepper—play it backwards and you stand on your head and all that.3
”
This is the first track on the White Album to feature Ringo Starr on drums. Starr briefly left the group during recording sessions for the album and was replaced on drums by McCartney on both "Back in the U.S.S.R." and "Dear Prudence".
^MacDonald, Ian (2005). Revolution in the Head: The Beatles' Records and the Sixties, Second Revised Edition, London: Pimlico (Rand), 311-314. ISBN 1-844-13828-3.