A pokemon, but more specifically, a conversation. To be started as "Would you care to learn which Pokemon I intend to use, then?"
Person 2 will respond with, "Sure!"
Person 1 will say, "I will be going with... my REGISTEEL."
Person 2 will say, "Your... Registeel?" This will continue for hours and hours. It never ends. Originates from a Youtube video of King Brandon and Ash in an episode of the Pokemon anime.
Person 1: Would you care to--
Person 2: NO MORE REGISTEEL. D:<