addition to pervious term there is more than that availabe or required eg. I need a lot more flour to make this dough. I would like to visit vegas for clubbing plus there are lots more casino

Hello! "Plus there's lots more" means in addition to. For example, listing something such as school supplies. For school you need pens, pencils, paper, plus there's lots more. It's slang/lazy English in my opinion. "Lots" simply means "a lot". I hope this helps!