It is blistering hot and extremely humid in summer.
- In what other things can we use blistering for?
Disclaimer:I'm not a teacher. Reference is made to Longman Dict.
Very critical remarks in expressing anger and disapproval
for example, blistering attack/criticism etc.
She launched into a blistering attack on her teacher.
Used to describe actions in sport which are very fast or forceful
LIU Xiang, the Chinese hurdle runner, sets a blistering pace from the start.
Oh, I'm sorry, but I don't agree that your sentence was correct: The boxer launched such blistering blows to knock his opponent off
The boxer knocked out his opponent with a series of blistering blows is one way to rewrite it.
It's the structure of using "such."
The [person] [verb] such [a noun/nouns] THAT something else happened.
The boxer launched such blistering blows that it was clear to anyone watching that his opponent never stood a chance.
(I don't really like "launched such blistering blows" but grammatically it's okay. I'd prefer "threw such a blistering punch" if you want to keep the blistering part.)
In boxing, you knock someone OUT, not OFF.
This would be okay: The teacher gave the student a blistering scolding to ensure he would understand how serious the situation is.
or this: The teacher gave the teacher such a blistering scolding that the student knew the situation was serious.
I'm not sure I've explained anything, but I hope the examples help.
In my sentence I used "such" as an intensifier of "blistering blows" and I don't think it would affect the rest of the sentence.
But I see that you're examples are better than mine.
I see that to "knock someone off" is to kill him and to "knock someone out" is to render him unconscious...