cash in phrasal verb ( see also ↑ cash )
1 . to make a profit from a situation in a way that other people think is wrong or unfair
cash in on
The record company was trying to cash in on her fame by releasing early teenage recordings.
2 . cash something ↔ in to exchange something such as an insurance ↑ policy for its value in money
3 . cash in your chips to die – used humorously