Catchphrases

Velma: Jinkies!

Daphne: Jeepers!

Shaggy: Zoinks!

Scooby-Doo: Ruh-roh!

Scooby-Doo: Ruh? usually when he doesn't understand something that someone has said.

Scooby-Doo: Scooby-dooby-doo! [usually howled at the end of every episode of the series]

Villian: I would have gotten away with it too if it wasn't for those meddling kids and that stupid dog!

Dialogue

Shaggy: [referring to Charlie] That was no ghost! He looks more like a man from Mars.

Velma: [referring to Scooby who ate too much beans on the counter] Oh, no! Scooby ate some jumping beans by mistake!

Velma: This isn't Zeb, Shaggy.

Shaggy: I thought he'd shrunk.

Velma: No! It's a voodoo doll that looks like him.

Daphne: Then what happened to Zeb?

Fred: I don't know, but I'll bet that witch had something to do with him.

Velma: I'd like to know what she and that zombie were up to.

Fred: Well, there's only one place to find the answer.

Shaggy: Like, in the phone book, I hope.

Fred: No, Shaggy. In the swamp.

[both Shaggy and Scooby-Doo gulped in fright]

Shaggy: I had to ask.

Shaggy: [after Scooby-Doo pierces a pin on the back of a Shaggy-like voodoo doll] Yeow! I've been voodooed!

Fred: Hold it, Shaggy. All you did was back into this fork.

Shaggy: Stop that! Don't be such a 'fraidy cat. Come on!

Shaggy: The door's stuck! It won't open!

Fred: With all his crazy experiments failed, Dr. Jekyll decides to turn himself into a life of crime.