Rain...rain don't go away
In his final line, Chance is begging the acid rain, which has helped him wash away the pain and problems of life, to stay with him longer. This line may also be playing off the childhood rhyme, “Rain Rain Go Away.”
He might also hope it stays so that it delays the killing of others. Referring back to this line in “Pusha man/ Paranoia” about the effect of rain on violence in Chicago.
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