I thought I'd posted this question to an earlier thread to do with the song "The Dummy Line," which many of us seem to have enjoyed hearing Michael Cooney sing. But I can't find my post, so I'm starting afresh. (Sorry if this makes double; I'm dealing with the sleep deprivation attendant on new parenthood, which gives me what a friend calls "baby brain"...

Anyway, I've learned a song that is not "The Dummy Line" that features a dummy train, which, like "The Dummy Line" refers to slowness...but I can't figure out exactly what a dummy train is.

I'll post the full lyrics when I can - here's a sample:'

Some people say the Dummy can't run
this mornin' this evenin' so soon
Some people say the Dummy can't run
My honey, oh my babe
Some people say the Dummy can't run
But I'm gonna tell you what the Dummy done done
She made all the switches by a half past one
Made a trip around the world before the setting of the sun
This mornin', this evenin' so soon

Thanks for any enlightenment...