feed on

English

Verb

feed on (third-person singular simple present feeds on, present participle feeding on, simple past and past participle fed on)

1. (literally, zoology) Of an animal, to take as food, to obtain regular nourishment.
2. (figuratively) To obtain energy or strength from something.
3. (figuratively, derogatory) To live at the expense of another person; to freeload.