u know the deal

You know what that means, I'm pretty sure. It's a bit like saying "you know how it is / u know what to do", a bit like saying that some bs are real

exp1

ur hoe: babe I’m horny, can I come over?

you: u know the deal

exp2

also she: just got out of the bathroom, I’m fresh for u

you: u know the deal Shawty, I’m comin