The shit I kick fuck with niggas mentally, makes them wanna mention me
And see me doing a quarter century in the penitentiary

from Nas (Ft. 50 Cent & Nature) – Projects 2 Hot Lyrics on Rap Genius

Meaning

50’s enemies are scared of the stuff that he talks about in his music, so they try to snitch on his criminal past (or mention his name to the police) so that he will spend the next twenty-five years in jail (keeping him from harming them).

Of course as he said earlier in the track, that won’t ever work and you’ll just end up dead.

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