When you and a friend(s) are speaking in half sentences and/or references that only you understand. If someone overheard the conversation, it would make no sense to them.
♪...Has wicked and vicious claws. And if you don’t run right now, you’ll spend Christmas in his jaws!♪
In Rudolph the Blood-Stained Jabberwock, it’s not just the Jabberwock, though. It’s also the Wildkin that spawns. Those Jabberwocks are also Scarlet ones named Rudolph and Wildkins look like emperor penguins.