hit on somebody/something phrasal verb ( see also ↑ hit )
1 . ( also hit upon something ) to have an idea or discover something suddenly or unexpectedly SYN come up with :
Then we hit on the idea of asking viewers to donate money over the Net.
2 . American English informal to talk to someone in a way that shows you are sexually attracted to them:
Dave has hit on most of the women in the department.