boo boo goo Share definition Flag The putty used to fill up a crack or hole you accidentally made. Crap, I made another divot in the linoleum. Pass me the "boo boo goo." boo boo goo by bobsyeruncle February 3, 2005 0 0 Get merch Get the boo boo goo mug. Buy Now — $32.95 See more merch