Your life is sure a bitch, but she know I’m rich
That why she give me what I want and I just throw her dick

from T.I. (Ft. Eminem) – That's All She Wrote Lyrics on Rap Genius

Going with a visual metaphor of life, which he also plays off of the theme “life is a bitch”.

T.I. is basically trying to say that life may be a bitch, but it treats him well.

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