The term "John Collins" is a name that is commonly used to refer to a popular cocktail that is made with bourbon, lemon juice, sugar, and club soda. Sometimes, this cocktail is also referred to as the "Whiskey Collins" or simply the "Collins". Other synonyms for this drink might include the "Tom Collins" (made with gin instead of bourbon), the "Vodka Collins" (made with vodka instead of bourbon), or the "Tequila Collins" (made with tequila instead of bourbon). Regardless of the name, this cocktail is a refreshing and easy-to-make drink that is perfect for any occasion.