another word for complete idiot or jackass. also a stoner who would rather sit at home alone home all day and do drugs than do something more meaningful with their life like go to school or hang out with some friends. or someone who has really bad teeth an looks like they have been crunching on rocks.
dylan was being a total rock cruncher today. he wouldnt share any of his weed with me.
b-square-dylan decided to be a rock cruncher today thats why he never showed up for school, miss macklin.
i seen a rock cruncher in walmart the other day, his teeth looked like they were going to fall right out of his mouth while he was checking me out.