the.com/swizzle stick

means A small rod used to stir cocktails, mix in flavors, or knock the fizz out of a sparkling drink.

from Tied to "swizzle," a term for a frothy mixed drink that shows up in Caribbean usage by the 1800s — origin genuinely murky, possibly linked to local dialect words for whisking or stirring. The stick itself got a second life in the 20th century as a literal tool: some versions even have little propeller-like blades at the tip to deliberately flatten champagne, a feature bartenders and scientists have both puzzled over since it seems to work by breaking up the bubbles' nucleation points.