check out

verb

1. To record the departure or withdrawal of someone or something (such as guests, employees, books, etc.).

   “He checked his favorite mystery out for the twenty-third time.”

   “The desk clerk checked out the family that had been staying in room 322.”

2. To record one's departure from a workplace, hotel, restaurant, etc.

   “Be sure to check out of the hotel before noon.”

   “I'm done shopping, so I'll go check out now.”

3. To examine, inspect, look at closely, ogle; to investigate; to gather information so as to make a decision.

   “He was hanging out at the beach, checking out the young women in bikinis.”

   “He checked out the rumor, and managed to verify that it was true.”

4. To obtain source code (or other material) from a source control repository so that one can modify it (and often later check in the modified version back).
5. To become uninterested in an activity and cease to participate in more than a perfunctory manner; to become uncooperative.

   “The purpose of this exercise was to ignite reactions from students, but over the few years I used it, it backfired, culminating in a situation where I lost a significant number of the white students, who just "checked out" for the rest of the semester.”

6. To become catatonic or otherwise nonresponsive.

   “Even during those years, there would be a lot of times she just checked out. She would be sitting there looking at her nails and she'd just be gone.”

7. To leave in a hurry.
8. To die.

   “Steve: (referring to his girlfriend attempting suicide in front of both of them) Look, I was just an observer. Bishop: You haven't answered my question. Steve: Well, what do you think? Bishop: We'll never know, will we? Steve: Well, say I just sat there—or we just sat there—and watched her check out. Think that would have been crazy?”

   “With a bottle full of sleeping pills and a long list of sins She'd already planned on checking out before she checked in”

9. To prove (after an investigation) to be the case, or to be in order.

   “The first two leads check out; I'll assume the third one is also valid.”

   “Their stories checked out.”

10. To visit the oche for the last time and clear one's remaining points to win the game.