A K hole is actully quite hard to describe. There is what I call three stages (Although some more experienced people might know more).
(Doses are all subjective)
With a small bump (Say 10-20mgs) you may feel a slight sense of relaxation and that the world seems to be a little clearer
Mid size bump (Say 25-50mg)
A feeling of almost being stoned as in slight disorientation, jumping images in field of view and everything seems to slow down quite a bit. You can talk and hold a conversation but this takes a little bit of effort.At
this dose running around and being an idot is a lot of fun.
Bigger bump (50-100mgs, warning I would not advise anything this big straight up and if purity is high and you have low tolerance I would say the chance of getting in a K-hole is very high)
The world as you see it is like looking through a TV, you lose periferal vision (Or at least that's your perception), you can't move unless you have assistance and even then it may not be possible. At this point time apears to slow to a halt and your left with your own thoughts which be enlightening or scary you never know. Some close eye halluinations can be experienced but not of the sort you would experience of LSD or shrooms. This is basically a K-Hole as I can best describe it.
One thing to rememer if you get in a K-hole your likely to be OK within an hour as the half life of Ketamine in the human system is approximately 90 minutes.