flash blood n.— «Many injecting drug users share dirty needles or use a dangerous cash-saving technique known as “flash blood,” in which a user injects heroin or another illicit substance and then draws a syringe full of blood...
flash blood n.— «Many injecting drug users share dirty needles or use a dangerous cash-saving technique known as “flash blood,” in which a user injects heroin or another illicit substance and then draws a syringe full of blood...
