Ok, these people have a nasty toilet and they are gross for touching it, so don't watch if you get grossed out easily. I'm waaaaay past looking at worm videos, been there, done that. I was actually watching the Rene Caisse story and this was along side the screen.
I think this is an ascaris, except it is stained brown. It goes from long and skinny to short and fat. Very weird. But most importantly, it explains why they are so hard to get rid of, they cling to our colons for dear life like this one is cleaning to the toilet when flushed.