Rocksglas
rocksglas is a term that can refer to a few different things, primarily a type of drinking glass and sometimes a surname. In the context of glassware, a rocksglas is a short, wide tumbler designed for serving spirits neat or on the rocks, meaning with ice. These glasses typically hold between 6 to 10 ounces of liquid and are often made of thick, durable glass. Their broad base and sturdy construction make them suitable for cocktails that are stirred or muddled, as they can withstand vigorous mixing. The name "rocksglas" is derived from the practice of serving drinks "on the rocks."
As a surname, Rocksglas is not particularly common. Individuals bearing this name may have diverse backgrounds