Sentence:  "The world hath noted, and your name is great / "In mouths of wisest censure: what's the matter, / "That you unlace your reputation thus / "And spend your rich opinion for the name / "Of a night-<WSD>brawler</WSD>? give me answer to it. 
Meaning of the word marked with <WSD> tags:  One who brawls, engages in noisy, unseemly fights.