What Do They Say?

The following pairs of words can be unscrambled to make two words that go together, like “this & that.” All pairs follow the same theme. Can you determine what they say?

DARK BOG = ______ + ______

COW MEAT = ______ + ______

ASHES SINK = ______ + ______

BRANDY YOKE = ______ + ______

Check Braingle.com for the answer.