The home is an orphanage. I know that in the text Bud says that he doesn't want to go back to the home, but he really does. He's lying to his new host family. Bud has been in the house of his new family for less than one day. Within that day Bud has been tortured by his new older sibling. Bud, being raised in an orphanage, doesn't sit back and take it. He retaliates, and the older boy goes and cries to his mother. The mother threatens to take Bud back to the home, and Bud begs her not to do that. Bud's thoughts reveal to the reader though that Bud really does want to go back. He's using reverse psychology on the mom. If he lets her think he REALLY doesn't want to go back, then that's exactly what she'll do to punish Bud.
Please don't call the Home, please don't send me back." Shucks, going back to the Home was just what I wanted to do, but I was being just like Brer Rabbit in one of the books Momma used to read to me at night when he yelled out, "Please, Brer Fox, don't throw me into the pricker patch, please, please!"