Hey. I've noticed that the last couple of times that I've ridden my fixed gear the chain has kindof jumped after or during a skid. It happens almost immediately after I start pedaling after skidding, and the pedal just slams down on the downstroke. Afterwards, everything is fine. The chain seems to be fine. I'm thinking that it may be loose and I just need to take it back an inch or so on my rear hub, but wanted to see if anyone had any advice beforehand. Thanks for you time.

Loose cog/lockring. Tighten with proper tools before you ruin your hub.

yeah, i dont know how you tightened your lockring to begin with, but get a proper lockring wrench/pliers before you die