Have you ever made a funny face before? Whether it be to make someone laugh, or scare a little kid on Halloween, everyone has. According to Wikipedia (the universal source of all truth), this distorted facial expression is known as a "gurn".
Some people across the pond seem to take this activity a little too seriously. In England, they have gurning competitions where the contestants have to make the most ridiculous faces they can while sticking their head through a horse collar. Picture in your mind what that looks like. Then take a look at the following world gurning champion ten years running, Tommy Mattinson, with the Queen of England:
The Queen is giving the same "wtf" expression you probably have on your face right now
I also found a few other gurning resources online (again) thanks to Wikipedia. If you want to see more gurning pictures,