Ratbag: rascal or trouble maker
Example: How are those two little ratbags of yours? (All of my examples are things I have actually heard)
This one is in honor of my father-in-law, Lynne. Lynne served his mission in Australia, where they also use the term ratbag. Lynne still uses the word occasionally. I was pretty excited when I heard it used here in NZ.
**If any of my new Kiwi friends happen to read these posts and would like to correct or improve on my definitions please do so. :)