This throw-away blues-lite tune is one of the most criticized songs in McCartney's CV. The former Beatle admitted in an interview with the October 2010 edition of Mojo
magazine that even he sometimes cringes when he listens to it. Said McCartney: "I think when you allow yourself to be kind of playful, the month after or the year after, you can just think, 'Oh, maybe that was a bit too playful. Maybe I should've thought a bit more about that.' And I was having that kind of feeling about 'Bip Bop.' It's a little bit insignificant, it doesn't really tax my lyric skills or my melodic skills.
But I think what has happened in rock 'n' roll has become so esteemed. I mean, people study the s--- in university! Well, when we started nobody did and a record like Link Wray's 'Rumble
' didn't have to have any significance other than it was just a red-hot record. And so 'Bip Bop' was done in that vein where it was like, 'It doesn't have to be significant, it's just a bip and a bop. A little nonsense song.'"