Can someone tell me what this firework is called?

I know it an illegal one. One 4th of july I was sitting in the front yard and there was this firework that made a reallyyyyyyyyyyyyyyy loud boom and a white flash. It made car alarms go off and it made the street lights in the neighborhood go off. I only seen it once and I thought it was called a blockbuster but I was wrong. I looked it up on youtube and it does not look the same or sound the same. So if you know what its called can you tell me.