The phrase "wire hangers" refers to thin, metal hangers that are typically used to hang clothes in closets. It can also be used metaphorically to represent a simple and inexpensive solution to a problem. Full definition
Do not let electrical wires hang loose where your pet can get to them. (blog.petmeds.com)
Unfortunately I was trying to finish this installation after dark and I could only see the end of the ground wire hanging out of the hole before I pulled it out. (mechanics.stackexchange.com)
So, there's two bare wires hanging down from the ceiling. (sbnation.com)