Yes, you read that right. Fred and George are perhaps the most Ravenclaw characters in the entire series, and this is why:
Relevant passages from the Ravenclaw welcome message (out of order for convenience, emphasis mine):
You’ll like our Head of house, Professor Filius Flitwick . . . His office door is always open to any Ravenclaw with a problem, and if you’re in a real state he’ll get out these delicious little cupcakes he keeps in a tin in his desk drawer and make them do a little dance for you. In fact, it’s worth pretending you’re in a real state just to see them jive.
As the head of the house, Professor Flitwick is the exemplary Ravenclaw, and he is very similar to F&G. They may love their tricks, but their main goal is always to brighten someone's day (and they would definitely appreciate dancing cupcakes). Additionally, Flitwick was impressed by the twins's wits and charms abilities:
“Well, Flitwick’s got rid of Fred and George’s swamp,” said Ginny. “He did it in about three seconds. But he left a tiny patch under the window and he’s roped it off —”
“Why?” said Hermione, looking startled.
“Oh, he just says it was a really good bit of magic,” said Ginny, shrugging.
“I think he left it as a monument to Fred and George,” said Ron through a mouthful of chocolate.
Fred and George are geniuses, brilliant, creative. In other words, the ultimate Ravenclaws:
Another cool thing about Ravenclaw is that our people are the most individual – some might even call them eccentrics. But geniuses are often out of step with ordinary folk, and unlike some other houses we could mention, we think you’ve got the right to wear what you like, believe what you want, and say what you feel. We aren’t put off by people who march to a different tune; on the contrary, we value them! . . . Most of the greatest wizarding inventors and innovators were in our house . . . There was also Minister Lorcan McLaird, who was a quite brilliant wizard, but preferred to communicate by puffing smoke out of the end of his wand. Well, I did say we produce eccentrics. In fact, we are also the house that gave the wizarding world Uric the Oddball, who used a jellyfish for a hat. He’s the punch line of a lot of wizarding jokes.
If these words didn't bring the Weasley twins to your mind, you should probably read the Harry Potter books. The Weasley twins are two of the most brilliant minds Hogwarts has ever seen. They figured out how to use the Marauders Map, invented their own products, started a successful business at 17, and were witty beyond belief. They are obviously very talented at charms because Umbridge, an adult wizard, couldn't get rid of their mayhem.