OK, I have this one story where there are (same-sex fraternal) twins who are partially mentally fused. At the start of the story, they talk in unison or else finish each other's sentences, and this plus the fact that they tend not to show emotions and aren't very interested in other kids means they come across as strange and creepy to the other kids. They also experience each other's physical sensations to a certain extent, such as feeling each other's pain. The other kids are going to bully them. One thing they'll do is deliberately cause one twin pain to watch the other one react. But I also need to figure out what kinds of insults they'll use. Any suggestions?