Definition of "lubet"

You must believe me that on this street, neither in the houses which line it, nor the cobblestones which pave it, nor the elevated structure which cuts it atwain, neither in any creature that bears a name and lives thereon, neither in any animal, bird or insect passing through it to slaughter or already slaughtered, is there hope of “lubet,” “sublimate” or “abominate.”

1939, Henry Miller, Tropic of Capricorn, Grove Press, published 1962, page 295