огород городить(to do something with a lot of energy, enthusiasm, etc, especially by spending a lot of money Х They really went to town on the decorations for the party. OALD Alexander Demidov)
фундаментальное нарушение договора(нарушение, которое может пошатнуть сами основы договора: After examining the dictionary meaning and the common law meaning of "material", Warren J concluded that a "material breach" can be equated with the expression known to the law of contract of "fundamental breach", being a breach that goes to the very root of the contract. sankozh)