The below description is taken from LEGO.com.
Hoo-hoo-hoo! Stop me if youíve, ha-ha-ha, heard this one, hee-hee, before!”
The ever-jolly Jester just canít keep himself from laughing at his own jokes. Heís a pro at puns, riddles, tongue-twisters and card tricks, but as much as his audience may appreciate his wacky wisecracks and medieval celebrity impressions, he appreciates them even more. He canít even get through a simple knock-knock joke without bursting into peals of laughter before he gets to the punchline.
Itís hard to be funny all the time, but the Jester makes it look easy. Everything he sees Ė and says Ė tickles his funny bone until heís left giggling, guffawing, chuckling, chortling, and rolling around on the floor during each performance. And once he gets going, the King, the Queen, and the whole royal court canít help but join in the fun and laughter, too!