Verb
slug it out (third-person singular simple present slugs it out, present participle slugging it out, simple past and past participle slugged it out)
(informal) To have an intense argument or fight until one side prevails.
So I just came out here to Los Angeles with a bunch of buddies I had gone to film school with. You know, for better or worse, we just tried to slug it out here. Danny McBride