No pain, no gain, no idea what half these terms mean.
A tongue-in-cheek insult hurled by NHL rivalries, particularly from Chicago and St. Louis fans, jokingly comparing Detroit's Red Wings to Soviet-era dominance. It's sports trash talk wrapped in Cold War nostalgia.
To remove internal tension from a material before it decides to betray you, or to remove the crushing weight of modern existence from a human's psyche. Both are valid uses in their respective fields.
When a ball, projectile, or criticism bounces off at an angle instead of going where intended. The technical term for 'not a direct hit' that physicists use to sound smart.