Sentence:  [T]here is a variety of drunkenness. . . . Some stagger about in each other's arms, whispering maudlin words—others start quarrels upon the slightest pretext, and <WSD>come to blows</WSD> and have to be pulled apart. 
Meaning of the word marked with <WSD> tags:  To fight; to initiate physical conflict, especially subsequent to escalating tension or antagonism.