You're smoking stones in abandoned homes
Some people squat in abandoned homes. The person the protagonist is addressing in this song is that desperate for their fix, that they will go anywhere to partake in their addiction.
Crackheads also go to “trap houses” and “crack houses” to smoke crack. Which are abandoned by the original tenants or the original tenants are kicked out by “dealers "because of the crack epidemic.
He could also be saying that this home is ‘abandoned’ because the idea of a family, of a loving and caring and nurturing family, had been ‘abandoned’ as a result of the crack addiction.
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