Okay, I'm going to limit myself to one per series and just run through what I currently have on the top of my head.
"Evil beware, we have waffles." - Teen Titans
"You gonna make biscuits? You gonna make biscuits? Yooou gonna make biscuits? Yooooou gonna make biiiscuiiiiits?" "No Gir, never. I never want you to mention biscuits ever again." -Invader Zim
"Not to mention a duck." - Ed, Edd, n Eddy
"Hm. No sir, I don't think I have any use for rubber nipples. But, do you have any rubber... walrus protectors?" "Call the poleeeeeeeece." - Ren and Stimpy
"No no no, Dracula don't suck, see that's a myth. Dracula scrape and lick, like this." - Billy and Mandy
"Dude, Benson's gonna drop his BALLS when he sees how good we set up these chairs. He'll be all like 'Oh no, my gumballs.'" - Regular Show
"You're under arrest for stealing my dollar! *sob*" - Adventure Time
"Huuuhhuuuhuhuhuhuhuhuhhuhuhuhuhhuu huu huu. Good thing he didn't PULL the secret string, opening the secret compartment of my secret box, revealing one embarrassing snapshot of Spongebob at that Christmas party!" - Spongeob Squarepants
"*stops car and pulls out driver* Official flower business. *drives away*" - Family Guy
"What's so wonderful about Leela being normal? The rest of us aren't normal, and that's what makes us great. Like Dr. Zoidberg! He's a weird monster who smells like he eats garbage, and does." "Damn right." "And the professor's a senile, amoral crackpot." "Ohhea." "Hermes is a Rastafarian accountant." "Tally me banana." "Amy's a klutz from mars" "*falls*" "And Fry, you've got that brain thing!" "I already did!" - Futurama
"Well, let's take the first sketch. I believe it was entitled Quantum Rape." "Ahahaha, oh come on, it's brilliant!" "It's about a guy who gets thrown in a jail cell, and his cellmate is there because he just raped Scott Bakula." "Yeah, and then the rapist spends eight pages explaining the premise of Quantum Leap to the guy, but the guy JUST DOESN'T GET IT! Ahahahahahahahahahahaahaha!" - American Dad