Biller Juice Share definition Flag A sweet drink, sometimes a tea, that is used if talking about a hillbilly. Look at that dumb trucker, he's been drinkin' too much Biller Juice! Biller Juice by ZexyZebraLover May 11, 2009 0 0 Get merch Get the Biller Juice mug. Buy Now — $32.95 See more merch