i have a random theory i've never looked into and have no evidence for.
in the early days of hockey, and i think most of north american pro sports, athletes would have nicknames like the early pro wrestlers. all the babes, dye, pratt, siebert, ruth. cyclone taylor, king clancy, shrimp worters, moose johnson, racial slur johnson, and so on. i don't know that much about early wrestling, but i'm imagining it was all good guys named gorgeous george and heels named, idk, nasty ned. i think it was a period of north american culture where there wasn't that much distinction between watching guys play ball sports or ice hockey or boxing or fake fighting. it was all different kinds of pt barnum.
and i feel like what you're describing coming in the 70s, with dave the hammer schultz and tiger williams and into the 80s and 90s with knuckles nilan, missing link gaetz, shawn the barbarian cronin, the grim reaper stu grimson, iron mike peluso, charlie manson, and so on. it all gets very cartoony the way the WWF did during this time. gino odjick's two nicknames were the algonquin assassin and the maniwaki mauler. those were straight up wrestling names.