What are some funny things your kids have said on accident?

So my kids are 4 year old twins, we were sitting in the living and I was looking at movies to watch with them. I finally found one to watch with them and turn it on. When my daughter yells out "Bitch!l". Naturally I said don't say bad words. She didn't know I was talking about. Still made me laugh. We were watching Lilo and Stitch. So what funny things have your kids said by accident?

Edit: changed on to by. Why does Reddit hate me so?