Definitions for "Slotted"
Something that happens if you fall into a crevasse, an almost ubiquitous hazard in Antarctica as the wind-blown snow often covers up these tapering cracks in the ice with a snow bridge that can easily be 50ft+ (over 16m) wide. The weakest part of the snow bridge is going to be the middle of course. Falling into a crevasse without a rope to stop you has to be one of the most unpleasant ways to go. There's a deep enough fall for you to pick up a fair speed before you get wedged into the narrowing space at the bottom (known as "corking in"). Assuming you don't crack your head on the way down and are still alive, you will become aware of being held by your pelvis or ribcage that may well have broken in the process. You now have to get out while firmly wedged and in some considerable pain. If not roped up you will be dependent on whoever is on the surface, so hope they've a long enough rope. To make matters worse it will probably be pitch black or at least very dim and if it's summer there's a possibility that the bottom of the crevasse may even contain very cold meltwater. Vehicles can also be slotted.
Keywords:  somebody, shoot, slang
To Shoot somebody (UK Slang)
Keywords:  strikers, bolt, plain, striking, plates
Strikers, or striking plates, come either slotted to allow the bolt through, or plain un-slotted.
Keywords:  screws, flat, driving, single, standard
Standard or flat for driving single slotted screws.
Having a slot.