std: sig Share definition Flag When your dog poops out their insides. Caused by parkinson's disease; back legs become paralyzed. Sexually inflammed guts. what's hangin from your dog's butt? Oh, it is just std: SIG!! std: sig by deppgirl October 29, 2008 0 0 Get merch Get the std: sig mug. Buy Now — $32.95 See more merch