meta cosplay [meh-tah-kaws-plehy]
1. The act of a fictional character/s dressing up as another/other fictional character/s.
EX. When I see stuff like the .gif above of Ash in meta cosplay of the champ of Unova, Alder and Pikachu dressed up like a Bouffalant, I really want to start casually watching the Pokémon anime to unwind.