There is a lot of material on why "waterfall is bad", but it is as important to know the specific reasons your management is "pushing agile". What is their def

There is a lot of material on why "waterfall is bad", but it is as important to know the specific reasons your management is "pushing agile". What is their definition of agile? Is it disciplined, or seen a a quick path to bypass all that tiring and troublesome planning?