First, "Annabelle" refers to the horror movie franchise. It's a movie that's been popular in Hollywood, and there's a Tamil version likely dubbed from an Indian production. Then there's the term "isaidub". I think that's a combination of "I say" and "Dub" but maybe it's a specific type of dubbed version. Wait, maybe it's a typo. Let me check. Oh, I've heard of "ISAI Dub" as a term in Tamil cinema for dubbed movies. So perhaps it's a dubbed version of Annabelle in Tamil, possibly with music or something.