Nothing to gain and a whole lot to lose you still singing, fool
This follows from the previous line about the hunger pangs of this unfit hussla Jay describes.
Due to his starvation(hunger pangin') — he’s not successful in the streets for any number of reasons; bad business decisions or relationships etc.
Even though there is no upside to snitching, at least in Jay’s opinion, this unfit hussla is still ‘singin’(snitching to law enforcement). Nothing to gain and a whole lot to lose just describes the downsides to snitching. It opens said hussla up to any and many forms of retaliation from those affected by the snitching. Imagine; no more business for him, his family can be in harms way, he could lose his life.. That’s a whole lot to lose…
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