Socks

Knock someone’s socks off
‘To knock someone’s socks off’ means to surprise or delight them.
‘We yelled ‘happy birthday’ and it almost knocked his socks off.’

Sock it to me
To ‘sock it to someone’ means to tell them bad news in a straightforward or direct manner.
‘Sock it to me! I’m ready for whatever you are going to tell me.’

Put a sock in it 
To ‘put a sock in it’ means to be quiet. It is used to tell someone to be quiet in a forceful manner. 
‘Will you put a sock in it? I can’t hear the TV.’

Pull your socks up
To ‘pull your socks up’ means to work to improve your behaviour or performance.
‘She will have to pull her socks up if she wants to pass her exams.’

Work your socks off 
To ‘work your socks off’ is to work very hard.
‘The lawyers I know earn a lot of money but they work their socks off.’

Bless your cotton socks
To ‘bless someone’s cotton socks’ is a way to express affection, often towards a child. 
‘My niece won the school art prize, bless her cotton socks.’

Sock someone 
To ‘sock’ someone means to hit them, usually in a playful manner.
‘They were playing nicely until he socked his brother.’