"What is this?"

Many kids go through the "why" phase. I'm not sure at what age. You however, at the age of 20-21 months, have started the "What is this?" phase. However, you don't enunciate it quite like that. It comes out, "Voo voos das?" It sounds more like how you would say "what is this" in German rather than English. It took me a few days but I finally realized that's what you were asking. You ask it ALL the time. I like that you're curious and inquisitive though. Hopefully we can keep that going!