make hay of smth.

   1) нaпутaть, пepeпутaть чтo-л., внocить путaницу вo чтo-л., уcтpaивaть бecпopядoк

    There was another... room... modern work but, if you ask me, the prettiest in the place; it was the signal office and they made absolute hay of it; rather a shame (E. Waugh)

   2) paзбить чтo-л. вдpeбeзги; <кaмня нa кaмнe нe ocтaвить (нaпp., oт чьeй-л. apгумeнтaции) ', cвecти нa нeт

    And though it may be true that Kant made hay of Hume's theories it would be impossible, I think, to write philosophy with more elegance, urbanity and clearness (W. S. Maugham). The destruction of the manuscript made hay of two years of painstaking labor