Juu Share definition Flag Slang for weedPronounced as "sju", "shu" or "schu" Let's smoke some juu.Person 1: That weed is really potent. Person 2: Yeah, that is some good juu. Juu by Tabberen November 15, 2013 0 0 Get merch Get the Juu mug. Buy Now — $32.95 See more merch