1 definition by Wild Guest
Acronym for Character Induced Stupidity. Commonly used in comics or anime/manga when the writer injects ridiculously stupid mistakes that may well be against the established canon of a character's history for the sake of advancing the story.
Ash Ketchum constantly receives CIS by releasing his strongest Pokemons every season and lose to the Pokemon League again and again and again.
by Wild Guest July 13, 2016