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to stop working, usually at the end of the day/

There`s only one definition provided by Cambridge dictionary.

But, I found several more meaning defined.

3. to complete something quickly and without much effort/

Example) They expect me to knock off (= write) a thousand words a day.

Does this mean doing something complete somehow but carelessly? like.. I tend to do my homework carelessly(= I tend to knock off my homework.. : <== I don`t know if this sentence deliever the meaning of "knock of" defined by number 3.

I want to know things I wrote are correct

Also, I want to know if there`s adequate expressions for it.

Thanks
Comments  
I think it means meet the qouta.
moon7296
Example) They expect me to knock off (= write) a thousand words a day.

Does this mean doing something complete somehow but carelessly?

Not quite "carelessly". The definition you quote -- "quickly and without much effort" -- seems to capture the meaning better.
moon7296like.. I tend to do my homework carelessly(= I tend to knock off my homework.. :
You could use "knock off" in relation to homework, but to me it doesn't sound terribly natural with "tend to" in this particular sentence.
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Thank you.

You said "You could use "knock off" in relation to homework"

Then, If I say, I knocked off my homework , is this understood as the first definition(finish)? No other way? such as,, dropping the homework on the floor -.-;;

and when wanting to express "I tend to do things carelessly"(could spend 2 hours to elaborate a certain thing but just finish it quickly in a careless manner) is there no idiomatic expression?
Hi,

to stop working, usually at the end of the day/

There`s only one definition provided by Cambridge dictionary.

But, I found several more meaning defined.

3. to complete something quickly and without much effort/ Yes

Example) They expect me to knock off (= write) a thousand words a day.

Does this mean doing something complete somehow but carelessly? like.. I tend to do my homework carelessly(= I tend to knock off my homework.. : <== I don`t know if this sentence deliever the meaning of "knock of" defined by number 3. Yes

I want to know things I wrote are correct

Also, I want to know if there`s adequate expressions for it.

Clive
Yes, you can also say "I bumped into the table and knocked off my homework."

It has a few meanings. You'll know which is meant in the right context.
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I've most often heard "knock" in that effortless homework sense with "out."

You're not going to the party because you have to write a thousand-word essay on Voltaire? Oh come on, you can knock that out in half an hour when you get home. Come with us!