The woodchipper appears as a large rust-colored machine with a wide opening at one end that serves as the "input", and a tall exit chute at the back. The chute is aimed over a hedge and into the neighbour's yard. The "mouth" of the machine contains a shelf-like area with constantly-spinning grinder blades behind it. The player cannot interact with the woodchipper directly, as there are no movable parts or doors like the incinerator or airlock.
Any object placed into the grinder will get sucked into the machine, shake or rattle around heavily for a short period, and finally disappear into the machine between the blades. Shreds the general colouration of the item(s) can then be seen shooting out the woodchipper's exit vent.
- If bodies or viscera are placed in the woodchipper, there will be a gushing spray of blood toward the player (see gallery image). This effect is mainly visual, and does not create new messes. However, objects placed inside can be flung back out of the machine due to the violent shaking, and those do splatter where they land.
- The woodchipper does not spawn new objects. Anything flying out of the machine is something that was placed there by the player.
- Unlike the incinerator, the woodchipper can become covered in blood and other splatters, and must be cleaned.
- Players are physically unable to touch the woodchipper blades because of it's "mouth". However, even when using the ghost command to fly into the blades, they are unable to harm the player.