Okay, here it goes.
You know how some boys like to dress up as girls and some girls like to dress up as boys? That's called being transgender. People who are transgender sometimes get picked on or hurt by other people for being different. When someone makes fun of or hurts another person because they are transgender, that is called trans bashing. It's like when someone bullies another person for being different. But it's not nice, and it hurts people's feelings and can even be dangerous. Just like how we shouldn't bully or hurt others for being different, we should respect everyone for who they are.