Where did you get that quote from?

[Nyorori]

The above user posts a quote but does not include a source, it is up to the next user to either guess or outright provide the source, repeat
"I'll steal it! No one will ever know!"

 

[Green Lantern]

Dan Backslide from The Dover Boys (1942)

"Ugh, you guys take your RPGs way too seriously!"

 

[Nellie Rose Morningstar]

DC Superhero Girls(?)

"I HAVE HAD ENOUGH OF YOUR NONSENSE FROM YOUR SMELLY MOUTH FILLED WITH... CORN!!!"

 

[Green Lantern]

DC Superhero Girls(?)

"I HAVE HAD ENOUGH OF YOUR NONSENSE FROM YOUR SMELLY MOUTH FILLED WITH... CORN!!!"

Correct, specifically Ember says it in S1E52

Is that Invader Zim?

 

[Nellie Rose Morningstar]

Correct, specifically Ember says it in S1E52

Is that Invader Zim?

Hell ye boi, but you didn't add another quote.

 

[Green Lantern]

Hell ye boi, but you didn't add another quote.

Sorry, my bad.

"He really is so adorable! Y'know, with a little work, I think I could make him look like a rabbit instead."