1) noun: an impairment of the ability to pass the blunt to the right person after taking a hit from it.
2) (bluntlexic) adjective: a person who constantly forgets who to pass the blunt to after taking a hit from it.
note: The word can be changed to suit the particular method of consuming marijuana such as "jointlexia" or "bonglexia".
Bob passes blunt to Cindy
Cindy takes hit
Cindy passes blunt back to Bob instead of Joe
Bob: "No, it's Joe's turn."
Joe: "she has bluntlexia."
Cindy passes blunt to Bob ...again
Bob to Cindy: "You're so bluntlexic."