verb

• (now historical, intransitive) To celebrate a victory in a boisterous manner.
  "[…] we crown our work by putting into our children’s hands a book that reeks of Jingoism, Imperialism, and Patriotism; that “mafficks” on every other page, that sings the glories of all the ruffianly kings who bore rule in the Dark Ages, and never fails to applaud their most disreputable military adventures!"

noun

• (now historical) The boisterous celebration of a victory.
  "But far the greater number of the inhabitants lead a sober life, only breaking out into occasional excess on “mafficks” of authorised national rejoicing, on the days of public holiday, or on the last night of the year, and other periods of unusual solemnity."