booboisie n class consisting of all those who are considered boobs Usage(s) Had he been born a contemporary of Mencken's, Wolfe would have railed at the booboisie. Mencken coined expressions like "Bible Belt," "booboisie," "Yahwah," which became part of the language of his imitative admirers but not slang. But in larger matters he was more naive than the booboisie.