The act of making something disappear without bringing notice or attention. A reference to endings of movies where the main character rides off into the sunset with no explanation or knowledge of the destination.
Regularly used to describe the act of abandoning a vehicle that has been set in motion with intent for it to continue moving 'towards the sunset'.
"I need you to get rid of the car we stole during the heist."
"Don't worry boss, I've been sunsetting cars since I was 16."
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"You need to sunset that ride. Drive safe, Baby"
- Kevin Spacey (Baby Driver, 2017)