KNOCK OFF (1)

knock off = reduce

 examples:

• Lucky for us, they knocked off the price.
• They knocked off 200 euros and we decided to buy it. 
• I am sure you can knock off a few more dollars. 
• They knock off 10% if you pay right away. 
• We managed to knock 300 euros off the price. 
• She is quite old but her make-up and clothes really knock years off her age.