knock something down

knock down

1. To cause to topple or fall over, either intentionally or unintentionally, by a strike or collision of some kind. In this usage, a noun or pronoun can be used between "knock" and "down." I accidentally knocked down an old lady on the street today—I felt so bad! My toddler loves to stack up blocks and then knock them down, over and over again. They're going to use a wrecking ball to knock down that building.
2. slang To decrease something. In this usage, a noun or pronoun can be used between "knock" and "down." I would knock down the oven temperature a little bit. You don't want to burn the turkey.
3. slang Reduce the price of something. In this usage, a noun or pronoun can be used between "knock" and "down." Don't tell my boss, but I can knock it down a couple hundred bucks for you.
4. To disassemble something in order to make it more manageable for storing or transporting; to break down. In this usage, a noun or pronoun can be used between "knock" and "down." We need to knock down these pallets before we can start to take stock of this merchandise.
5. slang To earn, as in a salary or other earnings. Mike never stops bragging about how he knocks down six figures a year.
6. To signal that something in an auction has been sold, as through the use of a gavel. The classic Mustang was finally knocked down after an intense back-and-forth bidding war.
7. To negotiate with someone with the result of them accepting a lower price, less favorable offer, etc. In this usage, a noun or pronoun can be used between "knock" and "down." They tried to knock me down, but I told them I couldn't budge on the salary.
8. slang To take a drink of alcohol. In this usage, a noun or pronoun can be used between "knock" and "down." Sure, I'll go. I wouldn't mind knocking a few down at the bar.
9. slang To cause one to become drunk. In this usage, a noun or pronoun can be used between "knock" and "down." Dude, no thanks. Vodka always knocks me down hard.
See also: down, knock
Farlex Dictionary of Idioms.

knock something down

1. tv. to drink a portion of liquor. He knocked down a bottle of beer and called for another.
2. tv. to earn a certain amount of money. She must knock down about twenty thou a year.
See also: down, knock, something
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • angle
  • angling
  • orient
  • orient to
  • orient to (something)
  • not do (someone or oneself) any favors
  • fill in
  • fill out
  • spiff up
  • spiffed up
References in classic literature
They are only afraid that he may knock something down, or trip over something when he comes into the room.
Feminism is not just bringing hammers to knock something down, to knock down old power structures.
"That's the thing about these kids, our defense keeps us in games, so if we can limit the scoring, even if they get a few, we know we're good enough offensive players it's not going to take us long to knock something down," said Mother McAuley coach Ashley Luke Clanton, a Waubonsie Valley graduate.
She had a walking stick which the two women asked her to use to knock something down from a top shelf.
Unfortunately, you do not get an elaborate plaque if all you have done is improve on a building, but knock something down and build something new in its stead, and jumped-up political minnows like Rodney Berman are given a wonderful ego-massage when their names are immortalised in stone for all to see.
From the set of new two-part Channel 4 drama Low Winter Sun, Alex said: "If I'm being totally honest, I feel as if I'm knocking my head against a brick wall, trying to knock something down that can't be felled.
After all, it's easier to knock something down than build it back up again."