I know I been a douche

The story:

I wondered for quite some time how Nazareth hot away with
Songs like hair of the dog and love hurts with
Such naughty language, when my friend asked what language
In love hurts. I told him "they say something like I'm a douche!"
My friend believed me and when he listened to it he heard it
too!
It wasn't until later that I read the lyrics and saw that I was
spreading lies!!