Mouthwash verb (6)

I believe the answer is:

gargle

(Other definitions for gargle that I've seen before include "Rinse throat with liquid without swallowing" , "Wash out the mouth and throat" , "Mouth/throat wash" , "Apply disinfectant liquid to back of throat" , "Wash out one's throat" .)

I've seen this clue in the USA Today.

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