punch (someone's) ticket

Translations
убить (кого-то)
The mob boss decided it was time to punch his ticket.
Главарь мафии решил, что пора его убить.
Definitions
To 'punch (someone's) ticket' is an idiomatic expression meaning to end someone's journey, experience, or, more seriously, their life. It can be used literally (such as validating a ticket for travel) or figuratively, often in slang or criminal contexts, to refer to killing or eliminating someone.
Words
ticket

noun
билет
punch

verb
ударить