This is mostly heard of in the centre and western England as well as Wales. To call someone a duck is the same as calling them 'love' or 'dear'. For example: 'Oh I'm sorry duck, I didn't see you there'. You might refer to a child as a duckling instead of a duck.
It means you are thinking or doing something outside the box - outside normal behavior. You are being a "wild duck" instead of a tame duck. Not necessarily bad, depends on the context of how it was used.
when someone calls you peaches that means that you smell inappropriate
if someone calls you a cat fish that means that you are a scary cat
It mean's honey:)
When Someone thinks you are bad but your not
when someone calls someone a dog they mean homie or a guy that flirts with a lot of girls dude how do you not know that
They do not like you.
Greedy
that your nice
brat
mad