Tools, vehicles, and whatever else have a possibility to malfunction under certain conditions, though usually only when they become too worn down.
Alternate names: Duds, Unreliable tools, Jamming
The first video game about Malfunctioning was released in 1992.
Note that weapon jams are generally quite fast and easy to solve, unlike what you tend to see in popular media where a gun jamming makes it completely unusable, but that's the same media where guns tend to have infinite ammo.
* Weapon jamming
* Engine stalling
* Dud explosives