рвать из рук(Наши обои очень высокого качества. покупатели их просто из рук рвут. – Our wall paper is of very high quality. We are unable to fight customers off with a big stick. VLZ_58)
сотрясать воздух(to say things that make people believe that one can do something or that something is true about oneself even though it is not true. They talk a good game, but they're not really ready for the championship. VLZ_58)