A Spanner Dog refers to those of the human species that are well below the average intelligence. A Spanner Dog will resemble a mouthbreathing, dough banging idiot of a bloke. Common traits include vacant looks, low levels of comprehension, mouth agape, drooling, possible lazy eye.
âGod, that Richie is a real Spanner Dogâ
âSwing the gate back the other way, you spanner dogâ
âYouâre being a real spanner dog, just