Scotch Dog Share definition Flag When a man and a dog do a sexual activity in a cardboard box whilst a man fucks a scotch pie in a seperate box. "Scoot and Dave had scotch dog last night, I heard them through the wall!" Scotch Dog by lorraine lorraine February 6, 2008 0 0 Get merch Get the Scotch Dog mug. Buy Now — $32.95 See more merch