soak the toad

Refers to smoking refer. Derived from a term it rhymes with, 'sneak a toke' which is to smoke weed from a small metal pipe that looks like a cigarette (sneaky). Term created to be used inconspicuously or in public.

Teacher: Why are you late?
Student: I had to soak the toad.
Teacher: Um...Go sit down.
Student: (sits down) hehe arrrrrrrrrrright!