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1520s, from Middle French gargouiller "to gurgle, bubble" (14c.), from Old French gargole "throat, waterspout," perhaps from garg-, imitative of throat sounds, + *goule, dialect word for "mouth," from Latin gula "throat." Related: Gargled; gargling. The earlier, native, form of the word was Middle English gargarize (early 15c.).
1650s, from gargle (v.).
gargle gar·gle (gär'gəl)
v. gar·gled, gar·gling, gar·gles
To force exhaled air through a liquid held in the back of the mouth, with the head tilted back, in order to cleanse or medicate the mouth or throat. n.
A medicated fluid used for gargling. Also called throatwash.
A drink, esp of liquor (1864+)verb
To drain and flush the radiator of a truck (1930s+ Truckers)