Leant over backwards is a phrase that is used to describe going above and beyond to accommodate someone or to make an effort to achieve something. There are several synonyms that can be used in place of this phrase, such as bending over backward, going out of one's way, making an all-out effort, pulling out all the stops, and doing everything possible. These synonyms are all used to convey the idea of great effort, energy, and enthusiasm directed towards accomplishing a goal or satisfying a need. Whether it is in personal or professional settings, these phrases can be used to recognize someone's hard work and dedication towards achieving a desired outcome.