The person who never has money to smoke weed but need to get high somehow. So when your grinder is left unattended, the person will free-base all the keef left in the catcher in attempts to get high. keef goblins think that they are not doing much damage but that keef culd have been sprinkled on a blunt. fucking assholes.
wur the fuck did my keef go! i had a shitload, fucking keef goblins!