What does afterblues mean?

afterblues meaning in Urban Dictionary

(Noun). The mild depression following extortionate use of cannabis, usually 1 to 2 times after the final time of usage. The way in which where the afterblues hit is determined by just how much cannabis had been smoked therefore the high quality; some afterblues will hit very hard but last not as much as an hour or so, and some comes in more gradually and last a-day or higher.