[Teribus]
Whose war-cry at the Battle of Flodden Jim Lad? The Scots Army? Somehow strongly doubt that. I can find no mention of it not even in Niall Barr's new book on the battle, or in any of the eye-witness accounts of the battle.

The tradition is that it was the warcry of the men of Hawick, used at that battle after centuries of use in more local fights.

http://en.wikipedia.org/wiki/Teribus_ye_teri_odin

Hawick Common Riding

I play the tune for those words (or rather the pipe march version of it) about once a week on average. It's one of the best known tunes in Scottish tradition and a fair proportion of people involved in Scottish trad know the backstory. (It would never occurred to me that anybody on a folk music forum using it as a handle would not have intended to allude to all of this).

Where does the Salvation Army come into it?