WOW RICK! I am JEALOUS! I want that stuff out of ME too!
I do expel mucous sometimes and it looks just like slime and if I pick it up with something to inspect it out of the toilet (YES, I know - GROSS, but I KNOW we all have done it...) it just basically falls away from itself...sort of like a big glob of SNOT.
My mucous really NEVER looked like what Rick had in that pic! BUT, I'd really like to have some of that come out of me too! (heehee!) ;)