f'shizzle my n'izzle
It means for sure my nigger. Everyone laughs at it, but it's still a racial slur and nobody really cares.
He just got a new dog, f'shizzle my n'izzle.
She just got a new phone, f'shizzle my n'izzle.
He just told the principal to go to hell, f'shizzle my n'izzle.