Actually, it was my sister who made this embarrassing mistake. One day we were riding in the car and she heard the song on the radio and made a face and said 'That's just disgusting!' I thought she was referring to the 'Wham, bam, thank you ma'am' line, but she said no, it was the other thing. I said 'What do you mean? What's the other thing?' She looked at me like I was a complete ignoramus. Then when the line came up, she pointed at the radio and said 'There! Right there! That's so rude!' Confused, I said 'Suffargette City? What's rude about that?' Her face went a little red, and I had a bit of a time getting it out of her, but once I knew she thought he was saying 'suck on your tittie', I burst out laughing, and to this day, I seldom miss a chance to embarrass her with this story.