The Firecracker

The Firecracker was Spencer's made up dance from the 10th grade. It was mentioned only one in iDream of Dance. He asks if he could show Carly, Sam and Freddie the dance, and they agree. He goes into his room to find his helmet for it. But when he woke them up after finding the helmet, they said they were to tired to watch the dance. The dance is available on iCarly.com.

Credits to

 * iCarly Wiki on Fandom