Explain · Serious version
Black holes in terms of a plumber
A black hole functions exactly like a plumber who has been called to a sink that is literally made of space and time.
Gravity acts as the wrench, tightening the drain until the escape velocity exceeds the speed of light. Just as a plumber identifies the point of no return where the U-bend becomes hopelessly obstructed, the singularity is the final, inescapable trap where matter is compacted into a point of zero volume. The event horizon is simply the kitchen floor tile, past which you are technically under the sink and beyond the reach of anyone standing in the hallway.
Once a star collapses, it is akin to a plumber realising the pipework is so badly damaged that the entire house must be dismantled to reach the leak. The intense pressure mimics a professional wrestling with a stubborn blockage that refuses to budge, regardless of how much force is applied. Much like a plumber charging by the hour, the black hole steadily accrues mass, hoovering up gas and stray asteroids with the persistent, low-effort efficiency of a tradesman who has just discovered that your entire piping system is made of lead.
Eventually, even light is dragged down the pipe, vanishing into the abyss as if it were a lost earring or a rogue tenner. The Hawking radiation leaking from the edges represents the faint, whistling sound of air escaping a poorly sealed joint. By the time the job is done, the room is empty, the light has been extinguished, and you are left with a bill for an infinite amount of work.
Where the analogy breaks downA plumber will eventually leave your house once the job is finished.