cash in one's chips
to die (the chips in many gambling games are changed into cash at the end of a game)

[TahlilGaran] Dictionary of Contemporary English ▲

cash in chips
call/cash in (your) chips
1.
to die.
He cashed in his chips shortly before his ninetieth birthday.

2.
to sell things that you own, especially shares (= parts of a business), because you need some money.
I think it's time to cash in our chips. It's the only way we can pay the bill.

[TahlilGaran] English Idioms Dictionary ▲

cash in one's chips
1. to die (the chips in many gambling games are changed into cash at the end of a game)
After an honorable and fruitful career the judge cashed in his chips at the age of ninety years.

2. to exchange or sell something to get some money (from the chips used in a poker game)
I decided to cash in my chips and go back to school.

[TahlilGaran] English Idioms Dictionary ▲

cash in one's chips
{slang} To die.
When the outlaw cashed in his chips, he was buried with his boots on.

He was shot through the body and knew he was going to cash in.

[TahlilGaran] English Idioms Dictionary ▲