Definition & Meaning of "old fashioned glass"

What is an "old fashioned glass"?

An old fashioned glass, also known as a rocks glass or lowball glass, is a short and sturdy glass commonly used for serving cocktails, particularly those that are served over ice or contain crushed or smashed ingredients. It typically has a capacity of around 6 to 10 ounces and is characterized by its wide, thick base and straight sides. Old Fashioned glasses are commonly used for classic cocktails such as the Old Fashioned, Whiskey Sour, and Negroni, among others.