"[...] You may remember that Mark Twain preferred to lie supinely in bed while composing those rather dated and boring efforts which contemporary scholars try to prove meaningful. [...]"
John Kennedy Toole. A Confederacy of Dunces (1980)
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This whale is not dead; he is only dispirited; out of sorts, perhaps; hypochondriac; and so supine, that the hinges of his jaw have relaxed, leaving him there in that ungainly sort of plight, a reproach to all his tribe, who must, no doubt, imprecate lock-jaws upon him.
Herman Melville. Moby Dick
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a surrealist painter relaxing, supine, on a beach,