I know this as a "roly-poly (pron. /ˈrəʊli - ˈpəʊli/) doll."It's a toy, you can push it over, but it comes back to the standing position after a few wobbles, it's almost impossible to make it fall, what is the ordinary name for this toy? wikipedia gives some names such as poly-poly toy, tumber, wobbly man, round-bottomed doll, tilting doll. I don't know which one is the most common.