Horse-laugh is a term used to describe a loud and raucous laugh that is often boisterous and obnoxious. However, there are other words that can be used to describe this type of laughter. One synonym for horse-laugh is guffaw, which derives from the Old English word "gēan" meaning to yawn or laugh. Another synonym is belly laugh, which refers to a deep and hearty laugh that comes from the stomach. A third synonym is cackle, which is a high-pitched and often derisive laugh that can be quite annoying. Regardless of the synonym used, a horse-laugh is a distinctive sound that is hard to mistake for anything else.