But I could never right my wrongs
'less I write it down for real, P.S

from Kendrick Lamar (Ft. Drake) – Poetic Justice Lyrics on Rap Genius

Meaning

The usage of this post script (P.S.) is to segue into the chorus by extending the play on the words write/right.

This is a play on words using the “right/write” homophones… very similar to what Kanye West used in the end of the second verse in “Touch the Sky”:

I’m tryin' to right my wrongs
It’s funny, them same wrongs help me write the song

This shows the irony of being unable to right his wrongdoings and negative experiences of his youth unless he “writes them down for real”. Everything he spits is real or has happened and the only way to right his wrongs is by writing them.

It could be a play on the line before about him communicating with us through his lyrics and hip-hop, and sharing it with other people so we can all learn and relate. It’s up to our generation to save this nation and Kendrick does so by creating music for the masses.

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