dabberghasted

to overwhelm(someone) with shock, surprise, amaze or leave in wonder while in the act of dabbing
or... to be so high that you can't comprehend anything around you
or... when referring to a much older person who becomes brainless after a dab

Gramps used to be 'the hip stoner' back in his day but after I pulled out my oil rig, torched the nail and took a gnarly rip, he just sat there, wide eyed, completely dabberghasted by the whole process.