The very person you can count in on when you are out with some dude or gal and they cover for you by saying you were out with them. Or that box of condoms in the glove compartment belongs to them and the left it there for some dumb ass reason.
Based on the Yiddish version, bobkes to mean nothing, absolutely nothing at all. 2.) Tiny shit balls, specifically like the fecal droppings of a goat. Bupkis mit kaduchas, means "shivering shit balls."