After this you be pressing rewind on top your master disk

from Black Star – Definition Lyrics on Rap Genius

Meaning

After other rappers hear this song/album they will realize the inferiority of their in-progress album, rewind their master recording and start re-recording it.
This is also a reference to listeners who will rewind the song to listen to it again because it’s so good and because they want to decipher the lyrics.

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