In the intro of TMNT the song goes like this:
When the evil Shredder attacks, these Turtle boys don't cut him no slack!
As what I have searched "cut someone some slack" means: to treat (someone) in a less harsh or critical way
Based on what I have learned, we either use "don't/doesn't" or "no" for making a sentence negative, like "I don't like it" or "This is no good". If I wanted to make the above idiom negative I would either say:
these Turtle boys don't cut him any slack!
these Turtle boys cut him no slack!
but why are both of "don't" and "no" used here? If it's OK to use both don't and no in one sentence in which situations we can do so?