Lawnmower

A lawnmower (also known as a grass cutter or simply mower, also often spelled lawn mower) is a device utilizing one or more revolving blades (or a reel) to cut a grass surface to an even height. This is used to keep a tidy lawn, and to prevent grass from growing too high due to neglect. The lawnmower may also be used, as a substitute to the most common method of curing pedophilia, by putting a target under the working lawnmower.

It is also the subject of Lawnmower Man, the origin story of Cobson.

A modern lawnmower, this specific variant is called a "push mower"