A toddler who leverages on their young age and radical selfishness to terrorize or blackmail their parents and grandparents to give in to their demands or wants.
Twonagers born with a silver spoon in their mouth are like little Donald J. Trump’s or Kim Jong-Un’s, with a small percentage of them never outgrowing that phase of their life to become lifelong jerks or assholes.
Sugar or sugar-filled foods, especially when consumed in excessive amounts that is unhealthy. "Twinkage" is a mix of the words "tweaker" and "twinkie", implying sugar as a drug, especially as used by children.