The first thing I thought of was:
"Whoa back, duck your nut, forget it I never shall
If you've ever navigated on the Er-I-EE Canal."
But I can't find that song in the DT, and I don't know the whole thing.

I can just hear Lou Killen singing a song with this tune, but I'm not sure what the song is. (I keep thinking it's a version of Cuckoo's Nest.)