From Longman Dictionary of Contemporary Englishheavy goingheavy goingBORINGif a book, play etc is heavy going, it is boring and difficult to understand → going
Examples from the Corpus
heavy going• Mwangaza was dull and heavy going.• Postnikova also manages to present in its possible light Tchaikovsky's Sonata, which is distinctly heavy going.• Although she usually got on well with children, she found Hilary heavy going.• Eoin Young's Diary is heavy going.• The findings indicate why groups such as the Pearl are finding it heavy going in their core business activity.• Like the writing of all books there are times of great enthusiasm, of heavy going and quite often real blockage.• He reports that a trip to Catterick Camp to set up rope ladders on the assault course was heavy going.• The resulting interview was heavy going for both of them.heavy goingheavy goingUNDERSTANDdifficult to understand or deal with I found his latest novel a bit heavy going. → heavyExamples from the Corpus
found ... heavy going• Although she usually got on well with children, she found Hilary heavy going. 