The thing to do these days is call someone names, specifically names that end with "head." The type of head is usually silly and sometimes has to do with the activity the callee is engaged in.
Take for instance the other day, when K was eating cheese. Bug called him a cheesehead. How appropriate! She then tried to call me a cheesehead, but her father corrected her, telling her that I, being from Maryland, was a crabhead. She determined that Jem is a moosehead since she was born in Alaska, and she's a moosehead, too.
"You were born in Texas, though," I said, "so what does that make you?"
"A poo poo head!"
Before any fellow Texans get their panties in a bunch over this, please realize that she was calling herself this, and also that no one in this household has been planting such ideas in her mind.