Gotta be on my P's and my Q's when I roll with this tool in the old school 'Lac
Cause niggas try to jack nowadays in the hood
Those broke niggas up to no good

Meaning

KRIT has to be vigilant on his best behavior (his P’s and Q’s when he’s riding around with a gun (tool) in his antique Cadillac.

He totes chrome because some people resort to crime to get money if their community lacks jobs.

As Rick Ross said

Bein' dead broke is the root of all evil.

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