Drinkinghorns are horns of generally bovine animals that are used by people to drink beer or mead (fermented alcoholic honey drink) from. Old Germanic peoples like Vikings, Saxons and Frisians are usually linked to these types of drinkingvessels, but in Asia and Africa cattleherding people are also known to use them.
Drinking from horns isn’t a practical occurence. The chape prohibits it from putting the object down. That’s why horns were used to pass around during celebrations and religious rituals or to drink the content in one go.