|Origin:||escroe 'inner screw, nut', from Latin scrofa 'female pig'|
a thin pointed piece of metal that you push and turn in order to fasten pieces of metal or wood together [↪ nail]:
Fix the frame in position and tighten the screws.
a) informal not polite
an offensive word meaning an act of having sex
b) informal not polite
a very offensive word for someone who is good at having sex
to be slightly crazy
to force someone to do something by threatening them:
The government has started to tighten the screws on illegal share dealers.
5 British English informalBO
a prison officer - used especially by prisoners