A person's mouth movie like a gag comic

A movie of a person whose mouth opens like a reaction of a character of a gag cartoon. I'm surprised if I can perform like I put a can into my mouth suddenly in a craze.

The movie is from the following. It is likely to spread to anywhere
YouTube - Worlds Biggest Mouth

I also get a can in my mouth
YouTube - Amazing Trick With Mouth

in Video, Posted by darkhorse_log