One step more insulting than the british use of diddums. When somebody isn't just looking for sympathy but has headed into drama queen behavior about the issue and appears to be looking for a knight in shining armour to solve it for them. Generally used against males.
"I haven't got my door key, it's wet outside, how am I going to get in?"
"Aww, pwincess. Just knock and your mum will wake up and let you in again."