1. "A Taste of Honey"
Lennon thought the Bobby Scott/Rick Marlow song was too old-fashioned and spitefully called it "A Waste of Money."
2. "It's Only Love"
"That's the one song I really hate of mine," he told Hit Parader in 1972. "Terrible lyric."
3. "Yes It Is"
"That's me trying a rewrite of 'This Boy' but it didn't work," Lennon said of this song.
4. "Run for Your Life"
John dismissed this one as "just sort of a throwaway song."
5. "When I'm Sixty-Four"
John snidely referred to this one as "granny music." When asked about the authorship of the song, he said it was "Paul's, completely. I would never dream of writing a song like that."
6. "Lovely Rita"
John saw this as an example of the sort of fictitious, message-free song he disliked. "I'm not interested in writing about people like that," he said, dismissing the tune. "I like to write about me, because I know me."
7. "Good Morning, Good Morning"
John never liked this one, and would eventually call it "a piece of garbage."
8. "Hello, Goodbye"
John was furious that this song was chosen to be an A-side over his more experimental "I Am the Walrus." "It wasn't a great piece," he said of the McCartney tune. "The best bit was the end, which we all ad-libbed in the studio, where I played piano."
9. "Lady Madonna"
"Good piano lick, but the song never really went anywhere," he said. "Maybe I helped [Paul] with some of the lyrics, but I'm not proud of them either way."
10. "Ob-La-Di, Ob-La-Da"
John despised this song, and resented that the band spent more time on it in the studio than anything else on the White Album.
11. "Martha My Dear"
Both John and George hated this one, and saw it as an example of Paul writing songs that were not very personal.
12. "Rocky Raccoon"
He was very embarrassed by this one, especially all the cover versions of it that came along. "I saw Bob Hope doing it once on the telly years ago," he said in an interview. "I just thanked God it wasn't one of mine."
"I think Paul wanted a song like 'Happy Birthday Baby,' the old '50s hit," he said. "It was a piece of garbage."
14. "Cry Baby Cry"
He disliked it so much he denied writing it in an interview. "Not me, a piece of rubbish."
15. "Sun King"
"That's a piece of garbage I had around," he said in 1980.
16. "Mean Mr. Mustard"
He described it as "a bit of crap that I wrote in India."
17. "Dig A Pony"
"It was literally a nonsense song," he said in 1980, going on to dismiss it as "another piece of garbage."
18. "Let It Be"
"It has nothing to do with The Beatles," he said in a 1980 interview with David Sheff. "It could've been Wings. I don't know what [Paul's] thinking when he writes 'Let It Be.'"
Most of this was sourced from All the Songs: The Story Behind Every Beatles Release by Phillipe Margotin and Jean-Michel Guesdon. It is an extremely thorough book.