An Oil Check is actually very painful and uncomfortable position. Most of the time the main Effectiveness of this move is based on a fact that victim is disgusted with it.
An oil check is a move when you put your finger in your opponent’s butt and maneuver with your opponent using it.
The Oil Check move is mostly used in wrestling and there are numerous cases of it but it’s very new to Jiu Jitsu. Check out the video below to check how guy taps out when he gets a finger in his butt.
YOu can also check out the TMZ video on Oil Check, the most disgusting wrestling move.