Boo Chang Chow Share definition Flag Refering to someones smelly genetials, butt, or just a weird smell coming from that person. Somebody in the club had a little Boo Chang Chow going on. Boo Chang Chow by reddragon_859 February 24, 2009 0 0 Get merch Get the Boo Chang Chow mug. Buy Now — $32.95 See more merch