A person that smokes a large amount of weed, particularly from dirty, smelly, very well used bongs.
my mate corey is honestly the biggest fuckin' bong goblin
A bong goblin is a young lady who is a permanent fixture of the student house party scene.
Can be found congregating in a smoky corner in the darkest recess of the party, getting wasted on any homemade weed delivery mechanism such as a bong. A bong goblin generally passes out due to copious inhalation of said weed.
The bong goblin is also generally a candidate for a good ol' tee-bagging and the occasional spooge incident.
In summary, a crack whore in training
Kev - Did you see Sophie at the party last night? She was wasted man
Chris - She is nothing but a Bong Goblin
Kev - I hear that