They've finished off all the bricks, but there's still another wall to build.
When I've finished the pullover, I might finish off the rest of the wool by making some gloves.
There is a little paint left in this can, so let's finish that off first.
"Go on, finish off this tart, Paul." "Well, it seems a shame to let it go to waste."
If you finish off that essay tonight, you'll be able to relax and enjoy the weekend.