Don't call me Nigel

The story:

I was singing it at the top of my lungs at some party. All of a sudden my friends stopped doing what they were doing, looked at me in a funny way, and bursted out in laughter. A few seconds later, they told me what the real lyrics were. Later on I told my girlfriend and her friend what I once thought the lyrics were, and to this day they can't help laughing about it ... I regret going to that party!