GIBBER JUICE Share definition Flag Any alcholic or ennervating liquid that, when consumed in high quantities, causes one to speak GIBBERISH Holy crap, that guy who is yakking foolishly must have been drinking too much gibber juice. GIBBER JUICE by creeker721 April 23, 2009 0 0 Get merch Get the GIBBER JUICE mug. Buy Now — $32.95 See more merch