Back in the early 70's, when fan rivalry included the odd bout of bigotry in the banter, Dee fans sometimes borrowed ideas from the Gers when it came to singing chants on matchday.
As well as flaunting Union Jacks at matches (which was copied off Rangers), the Derry used to burst into the "Born Under A Union Jack" chant, a well known Gers song, but obviously, Dundee's version having a tweak to the wording. The original tune, by Lee Marvin is called "Wandering Star". Here below is a wee reminder of that very tune, with sing-a-long lyrics!
I wouldn't be surprised if it's outlawed now!!