Definition of "roisterer"

But go to—carry thy roisterers elsewhere—to the alehouse if they list, and there are crowns to pay your charges—make out the day’s madness without doing more mischief, and be wise men to-morrow—and hereafter learn to serve a good cause better than by acting like ruffians.

1820, [Walter Scott], chapter XV, in The Abbot. […], volume I, Edinburgh: […] [James Ballantyne & Co.] for Longman, Hurst, Rees, Orme, and Brown, […]; and for Archibald Constable and Company, and John Ballantyne, […], page 326