devil of a
Also, one devil or the devil of a; hell of a. Infernally annoying or difficult, as in This is a devil of an assembly job, or She had one devil of a time getting through the traffic, or I had a hell of a morning sitting in that doctor's office. The first expression dates from the mid-1700s. The variant is a couple of decades newer and its precise meaning depends on the context. For example, We had a hell of a time getting here invariably means we had a very difficult or annoying time, but He is one hell of a driver could mean that he is either very good or very bad (see hell of a, def. 2).
Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.