ValhallaPronunciation: /valˈhalə/ Scandinavian MythologyDefinition of Valhalla a palace in which heroes killed in battle were believed to feast with Odin for eternity. Origin:modern Latin, from Old Norse Valhǫll, from valr 'the slain' + hǫll 'hall'Valhalla in other Oxford dictionaries Definition of Valhalla in the US English dictionary