Song facts: Cold Turkey
According to Peter Brown the song is about John and Yoko's experience going cold turkey while getting off of heroin. But there's also another claim the song is a reference to food poisoning John got from eating some cold turkey; most people refer to the former.
"Heroin. It just was not too much fun. I never injected it or anything. We sniffed a little when we were in real pain. I mean we just couldn't - people were giving us such a hard time. And I've had so much shit thrown at me and especially at Yoko. People like Peter Brown in our office, he comes down and shakes my hand and doesn't even say hello to her. Now that's going on all the time. And we get in so much pain that we have to do something about it. And that's what happened to us. We took H because of what The Beatles and their pals were doing to us. And we got out of it. They didn't set down to do it, but things came out of that period. And I don't forget."
Cold Turkey was released in the US on October 20th and four days later in the UK. The song peaked at number 30 on the Billboard Hot 100 and number 14 on the UK singles chart.