knock (something) off

1. to subtract a certain amount from the price of an item.

The manager knocked two bucks off because the dress had a button missing.

If you knock off five dollars, I'd consider buying it.

2. to produce something quickly and easily.

He can usually knock off a short story in just a few days.

• make a federal case of
• make a federal case of something
• make a federal case out of
• make a federal case out of something
• make a fool of
• make a fool of yourself
• make a good fist of
• make a good fist of doing something
• make a good fist of something
• make a great play of
• make a great play of something
• make a hole in
• make a hole in something
• make a killing
• make allowances for
• make allowances for someone
• make allowances for something
• make all the difference
• make all the difference in the world
• make all the right noises
• make all the running
• make a long story short
• make a man of
• make a man of someone
• make a man out of