mixed metaphor
combination of two or more metaphors that do not fit together and therefore produce a ludicrous effect, eg The hand that rocks the cradle has kicked the bucket 混杂隐喻(至少两个隐喻的合用, 因不通而产生滑稽效果, 如将the hand that rocks the cradle (rules the world)和kick the bucket合用).
We also make the fundamental error of announcing our resolutions to everybody so that we look even more foolish when we slip back into our bad old ways.