Washing or Rinsing Out Water From One's Mouth

This page is the CodyCross answer for the clue below from Trip to Spain, Group 860, Puzzle 5 (Wine Battle of Haro).

Question is: Washing or Rinsing Out Water From One's Mouth

and the answer is: SWILLING

Word Meaning:

SWILLING — present participle and gerund of swill

Definitions from Wiktionary.