A alternate term used to describe an extreme pot head, or person who habitually smokes marijuana through out the day with little regard to responsibilities and relationships.
"You smoked all that pot!? You doobie noggin"
" Come on you Doobie Noggin'! We're going to be late to the movies."
"Did you eat all of the food in the fridge? Dude, you're such a doobie noggin.