screw up[ skroo-uhp ]SEE DEFINITION OF screw up
EXAMPLES FROM THE WEB FOR SCREW UP
Furthermore, never use an auxiliary lever to screw up the jaws.
Then, perhaps, they will screw up their courage to make another assault.'
I don't want the sun right in his face, it makes him screw up his eyes.
Then you can screw up my machine a good deal higher, and it will support us both.
I'd screw up a spell, only there's no gettin' inside of the stove.
To put it quite plainly, they were trying to screw up their courage.
“Well, what I was trying to screw up courage to say was this,” he went on.
If she could only screw up her courage to the sticking-point!
I shall try to screw up courage and take him on a bust now and then.
You've still got some strength, and now I'll screw up your machinery again.