"Turt" is a simple dumbed down and more derpy version of turtle. Dunno where the other definitions got their knowledge, but its incorrect, turt = turtle.
A little kid just leaving the toddler stage. They can walk but haven’t mastered it yet. Turt is masculine only, it cannot be used to define a little girl. The feminine version may be submitted if this gets accepted.
That little turt doesn’t have to worry about anything.