An exceedingly large clump of weed; usually an ounce or more. Extremely rare and highly coveted by stoners around the globe. if you so happen to come across one of these epic buds, be sure to take a picture, or your friends will never believe you.
"dude, i went over to my neighbors house, and he had a budzilla just chillin' on his table!"
"you need to introduce me to your neighbor man.