i have possibly too many to mention, but here are some highlights from my media autisms collection:
"i am so dumb" - hole
a weirdly high number from totally 4 teens, including: (yeah that's right, list inside a list)
"disease disease disease disease disease"
"money ... uh... um... money"
"they both seem pretty cool they both seem pretty cool they both seem pretty cool"
[sublist has ended]
"somebody touched MY peepee (thunderous applause)" - the dr ph!1 youtube poop collaboration
"oh that's not..." - kelly osbourne on the view
"wE CANT FUCKING SEE ANYTHING" - some random audience member from the grand final of eurovision 2007
"im tired pssht im tired pssht im tired pssht" - from alyxytp's "the comp"

and also many more from dathings' ytps that i will not list,