Drano brain
Heavy meth users. Meth use has fried their brains and they now are subhumans. They can longer be classified as humans.
When explaining a meth users actions. Drano brain encompasses all of their subhuman logic.
drano brain
Meth users. Heavy users whose brains are so fried they should no longer be considered members of the human race.
Tom and Sally now belong in the drano brain class of non humans.