rough-and-tumble
1. {n.}
Very rough, hard fighting or arguing that does not follow any rules.
There was a rough-and-tumble on the street last night between some soldiers and sailors.
Many people don't like the rough-and-tumble of politics.
2. {adj.}
Fighting or arguing in a very rough and reckless way; struggling hard; not following rules or laws.
It took strong men to stay alive in the rough-and-tumble life of the western frontier.
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Source: A Dictionary of American Idioms