hole-and-corner

adj [usu attrib 通常作定语] (derog 贬) (of an activity) secret because dishonest or illegal; underhand （指活动）偷偷摸摸的, 见不得人的, 不光明正大的: a hole-and-corner affair, business, method 鬼鬼祟祟的事情、 交易、 方法.

hold out one's hand, hold over, hold sb down, hold sb/sth up, hold sth over, hold sth/oneself in, hold to sth, hold together, hold true, hold up, hold water, hold with, hold with sth, hold-up, hold...against, holdall, holder, holding, holding company, hole, holiday, holiday camp (also holiday centre), holiday-maker, holier-than-thou, holiness, Holland, holler, hollow, hollowly, hollowness, holly, hollyhock, Hollywood, holm-oak, holocaust, hologram, holograph, hols, holster, holy,