disapproval If you say that people are coming out of the woodwork, you are criticizing them for suddenly appearing in public or revealing their opinions when previously they did not make themselves known. When a song gets to the top, someone will come out of the woodwork and claim to have written it
You can refer to the doors and other wooden parts of a house as the woodwork. I love the living room, with its dark woodwork, oriental rugs, and chunky furniture He could see the glimmer of fresh paint on the woodwork