Booting

[Tina]

[throwing up] ([usually] from [drinking])

[Kit]

[Mainlining] a drug into your bloodstream, drawing back the [syringe] to [refill] it with blood, and then injecting it back into your arm. The theory being, the blood injected back into your bloodstream, will carry with it, any residule narcotic leftover in the syringe.

[Merna]

present participle of boot