A bar mixer is a piece of equipment that is used to mix beverages in bars and other hospitality establishments. There are a variety of synonyms for the term 'bar mixer' that are used interchangeably, including drink mixer, cocktail mixer, beverage mixer, blender, and shaker. Each of these terms refers to equipment that is used to mix and blend ingredients to make different types of cocktails and drinks. While each term is slightly different, they all refer to the same essential tool that mixologists and bartenders use to create delicious concoctions for their customers.