+ conk out conk out If something such as a machine or a vehicle conks out, it stops working or breaks down. The dynamo conked out so we've got no electricity. A hard, shelflike, spore-bearing structure of certain wood-decaying fungi, found on stumps, logs, or trees. To straighten (tightly curled hair) usually by chemical means. a nose
The fruiting body of a wood-destroying fungus that projects from the bole, roots, or other tree parts The size, shape, and color of conks will vary depending on the fungus species