Fuck that, why try, throw bleach in your eye
Now ya brailling it, snatch that light shit, I'm scaling it

from The Notorious B.I.G. (Ft. The Mad Rapper) – Kick In The Door Lyrics on Rap Genius

Meaning

If you disrespect B.I.G., he’ll do something crazy like throw bleach in your eye. Since you’ll be blind from the bleach, you’ll be “brailling it” (reading braille) from now on (this was pre-audio book). So B.I.G. might as well steal your cocaine (“that light shit”) and “scale” (weigh) it so as to sell it himself

The “bleach in eye” is interpreted as a diss to Raekwon of the Wu-Tang Clan. It is an allusion to “Ice Water” on Raekwon’s Only Build 4 Cuban Links:

That’s life to top it all off, beef with white
Pulling bleach off, trying to throw it in my eyesight

Although B.I.G. had a lot of respect for Wu-Tang members (especially RZA and Method Man), there was a fair bit of tension between him and Shaolin’s Ghostface Killah and Raekwon, and this song is considered a beef song of sorts against the Chef. They eventually all reconciled, shortly before Big was killed.

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