Definition of "meatless"

A meatless day or a beerless or tealess day does not suggest moderation so much as immoderation.

1916, The Saturday Review of Politics, Literature, Science and Art

Are we to understand from paragraph 1 (c) that [the residents of Malta] are entirely meatless? or have they cattle they can kill, and if so how many?

1942, Winston S. Churchill, The Hinge of Fate, vol. 4 of The Second World War (Boston: Houghton Mifflin, 1950), p. 300.