feed on something

Some women were able to feed their families on $5 per week.

By 16 or 18 days, they are able to feed on their own.

I had the feeling he was feeding on her energy.

How would we feed the people on the far bank?

She would have to bring John to feed on his own.

Make love to me, and then you can feed on someone else.

They do not come to feed on the ground very often.

And it had fed on fear for a long time.

They come out to feed on blood about every five to ten days.

Then they would have their turn to feed on the remains of those left behind.