come on top of

come on top of (something)

To occur very soon after something else. To have another tragedy come on top of a death in the family is just devastating.
See also: come, of, on, top

come (right) on top of something

Fig. [for something] to happen immediately after something else. The accident expenses came right on top of the costs of her illness. The bad news came on top of some other problems we were having.
See also: come, of, on, top