randomly remixed cartoons. Mostly using clips from Adventures of Sonic the Hedgehog, though people have used other various cartoons such as Cow and Chicken, Duck Tales, Rocko's Modern Life, Darkwing Duck, Whatever Happened to Robot Jones? and MANY others .
A couple of the common running gags are "And who are you supposed to be" and "Mama Luigi". "Tree" is another common joke.
"Now I know how a MEATBALL feels!"
"And who are YOU supposed to be?"
examples of quotes in YouTube Poop