checksout
verb (informal)UK /ˌtʃeks ˈaʊt/
US /ˌtʃeks ˈaʊt/
It means something is correct or okay.
The teacher checks out my homework before I hand it in.
OTHER MEANINGS
2. To look at something to see if it is good or safe.
The mechanic checks out the car before the trip.
3. To leave a hotel or a place after paying.
We check out of the hotel at noon.
4. To borrow a book from a library.
I check out two books every week.
5. To seem true or believable.
His story checks out with what the others said.