quaffing

/K W AA1 F IH0 NG/
verb
  1. 1

    To drink or imbibe with vigour or relish; to drink copiously; to swallow in large draughts.

noun
  1. 1

    The act by which something is quaffed; a drinking.

Source: https://en.wiktionary.org/wiki/quaff, https://en.wiktionary.org/wiki/quaffing