Definition of "Valhalla"

[S]uch souls as were detruded from the body by any violent method went strait to Valhalla. (Latin original: Nostratibus sane hoc erat infallibiliter persuasum, animas, non vulgares, neque senio morbove, sec cruenta morte & vi corporibus exeuntes, recta ad Vahlallam ferri)

1791 May 1, “Moore's Inquiry into the Subject of Suicide”, in Monthly Review‎, London, pages 24–25

In some poems they are envisaged as divine figures, women who serve mead to the dead warriors in Valhall, and who fulfil the will of Odin in overseeing battle and making sure that victory is awarded to the right man.

1996, Carolyne Larrington, The Poetic Edda, Folio Society, published 2016, page xvii

“The swans are singing again,” said to one another the gods. And looking downwards, for my dreams had taken me to some fair and far Valhalla, I saw below me an iridescent bubble not greatly larger than a star shine beautifully but faintly, and up and up from it looking larger and larger came a flock of white, innumerable swans, singing and singing and singing, till it seemed as though even the gods were wild ships swimming in music.

1915, Edward Plunkett; Lord Dunsany, Fifty-One Tales

You will all go directly to your respective Valhallas / Go directly, do not pass 'GO', do not collect two hundred dollars

1959, Tom Lehrer (lyrics and music), “We Will All Go Together When We Go”