The Motts is simply a term used to describe an indescribable feeling of uncomfortable disgust and awkwardness. This can be used in any form, from social situations to describing movies.
"Man, old episodes of MASH really give me the motts!"
"This old man who smelled like meat came into our store today and spoke to me in monotone for 45 minutes about Starwars. I had the motts so bad!"
As I remember it, the Motts brand of Applesauce had a commercial years ago with the catchphrase "That's the Motts," which was meant as extremely great or the best.
The best way to describe "the motts" is like this:
Do you remember the first time you watched a bad daytime interview show, like Springer or something, and someone is just making a total ass out of themselves, doing or saying something very uncomfortable?
Or when you are sitting through a high school talent show and all of a sudden you feel embarrassed for your classmate who is singing "The Greatest Love Of All" by Whitney Houston?
You sometimes have to cover your eyes, or look away.
Thats "the motts".