In Norse mythology, the souls of warriors who died nobly in battle were brought to a magnificent palace, where they spent their days fighting for diversion, immune from lasting injury, and their evenings lustily feasting on freshly killed boar and quaffing the free-flowing mead. In Old Norse, the word for this warrior heaven is Valhǫll (literally, "hall of the slain"); in German, it is Walhalla. English speakers picked up the name as Valhalla in the 18th century. Nowadays, we can use the word figuratively, and induction or admission into a modern-day Valhalla doesn't require passing from this life. It can be a place of honor (a hall of fame, for example) or a place of bliss (as in "an ice cream lover's Valhalla").
Word History
Etymology
borrowed from German and Old Norse; German Walhalla, borrowed from Old Norse Valhǫll, literally, "hall of the slain," from valr "the slain" (akin to Old English wæl "slaughter, the slain" and probably to Latin vulnus "wound") + hǫll "hall"; akin to Old English heall "hall" — more at vulnerable, hall