drop someone or something on someone or something
to release something so it falls on someone or something. Poor Alice dropped an iron on her toe. I accidentally dropped the baby on the floor.
drop something on someone
1. . Lit. to let something fall on someone. The bricklayer dropped some mortar on me.
2. Fig. to give someone some bad news. (As if dropping a burden on someone.) Sally dropped some really bad news on Walter. I'm sorry I had to drop it on you like that.