to attach one thing to another using a screw [↪ nail]
attach[transitive always + adverb/preposition]TBC
screw something into/onto/to something
The chairs were screwed to the floor.
The wooden frame should be screwed onto the wall.
to fasten or close something by turning it, or to be fastened in this way [≠ unscrew]
close by turning[intransitive,transitive always + adverb/preposition]
screw (something) on/onto something
The lens screws onto the front of the camera.
She carefully screwed the cap back onto the toothpaste.
to twist paper or cloth into a small round shape:
paper/cloth[transitive always + adverb/preposition] also screw up
She screwed the letter up and threw it in the bin.
screw something (up) into something
I screwed my handkerchief into a ball.
an offensive word meaning to have sex with someone
sex[intransitive and transitive] taboo
5 spoken not polite
an offensive expression used to show that you are very angry with someone
to cheat someone in order to get money from them
cheat[transitive] not polite
screw somebody for something
• They screwed us for $60 in the end.
➔ have your head screwed on (straight)at head1 (3c)
screw aroundphrasal verb
to do silly things that may cause trouble [= mess around]:
The kids were screwing around down by the bus station.
2 not polite
an offensive expression meaning to have sex with a lot of different people
screw upphrasal verb
to make a bad mistake or do something very stupid [= mess up]:
You'd better not screw up this time.
to spoil something by doing something stupid [= mess something up]:
She realized that she had screwed up her life.
to move the muscles in your face in a way that makes your eyes seem narrow:
He screwed up his eyes against the bright light.
Her face was screwed up with pain.
to make someone feel very unhappy, confused, or upset so that they have emotional problems for a long time [= mess somebody up]: ➔ screwed up
It really screwed her up when her mother died.
5 also screw up your courage
to be brave enough to do something you are very nervous about:
I finally screwed up enough courage to talk to her.