How is “cash in” used?

In Arthur the King (2024), one line is: “Cashed in my entire savings for that hotel room.”

Which movie is “cash in” from?

The clip at the top of this page is from Arthur the King (2024).

to gain an advantage for yourself from a situation, especially in a way that other people think is wrong or immoral

disapproving · Heard in 19 movies

Oxford54% of films
to gain an advantage for yourself from a situation, especially in a way that other people think is wrong or immoral
You have to cash in while you can.

Definitions from the Oxford Advanced Learner's Dictionary, 9th edition

Cashed in my entire savings for that hotel room.

Said in 8 films · #1