First clip: kid smacking the book was yelling the Russian word for “bitch” I think. He was clearly out of control and had some REKT coming.

Second clip: This is a stupid person’s idea of how a smart person sounds.

Third clip: Japanese advertisement. The critter with the giant testicles is a tanuki, who is portrayed in popular fiction has having giant testicles despite not having them in real life.

Fourth clip: it’s called sketch comedy, fool!

Fifth clip: Appears to be some kind of phobia. Fear of being trapped in a room or something?