Explanations

BREAK IT DOWN= Talking about music, this can mean several things: to rap it (sing in a rapping way), to soften the melody for a little while, or just the opposite, to increase the energy of the music, which is the case here. Anyway, it always implies a change in the melody.

YOU DON’T MEAN NOTHING= A double negative is incorrect in standard English (either British or American), but it is found in colloquial speech, especially in American English.

AT ALL= We use this phrase to emphasize a negative sentence or a question (never in affirmative sentences):
- I don’t like her at all (= I really don’t like her, not a bit)
- Do you know me at all? (=do you have any idea who I am?)

EITHER... OR= When we have two sentences joined with OR (to show two alternatives), we can reinforce the idea of OR by putting EITHER before the first sentence:
- You can laugh or cry = You can either laugh or cry.
In AmE it is pronounced /i:ðər/ and in BrE usually /aɪðə/>

YOU EITHER GOT IT= You either have got it (have it). In colloquial AmE it is very common to use GOT instead of HAVE GOT or HAVE.

YOUR WILL= Your wish, what you want.

SLIP= To move smoothly, easily, and quietly; to slide, to escape.

THERE’S A HOLE IN THE PLAN= The plan is not consistent, something will go wrong.

TO SET ME FREE= To liberate me.

YOU COULD MEAN= Here COULD is in the conditional tense (not the past), so she’s talking about a possibility: you are not now, but you might be (if you say the right thing).

I’M AT FAULT= I’ve made a mistake, I’m guilty, I’ve made something wrong.

ANOTHER BRICK THAT I LAID= A brick is a rectangular piece of (usually red) baked clay used for building. To lay a brick is to put another brick on the wall when you’re building.

HOLY= Sacred. Pronounced /həʊlɪ/

WANNA= Want to.