JFK omitted the "of the game" from Holt's "do the ugly side" comment and then stated he hadn't mentioned football.
Closer to home, was Jock Wallace's,"Got the battle fever on" comment a request for his team to assault the opposition? Then we have several instances of another Rangers manager, Graeme Souness, actually assaulting the opposition (Hibs and Steau Bucharest spring to mind).
The Scottish game is more physical than most other leagues. What we lack in footballing prowess, we replace with blood and guts - thus it has aye been.