Soaped-pig Fashion (In)
.Vague; a method of speaking or writing which always leaves a way of escape. The allusion is to the custom at fairs, etc., of soaping the tail of a pig before turning it out to be caught by the tail.
“He is vague as may be; writing in what is called the ‘soaped-pigʹ fashion.”—Carlyle: The Diamond Necklace, chap. iv.